{"title":"Calibration Lamps \u0026 Modules","description":null,"products":[{"product_id":"shelyak-alpy-calibration-module","title":"Module d'étalonnage Shelyak Alpy","description":"\u003c!-- more --\u003e\u003cp\u003e \u003cspan id=\"tran0\"\u003eL'étalonnage en longueur d'onde d'un spectre nécessite d'observer le spectre d'une lumière d'étalonnage, c'est-à-dire d'une lumière à nombreuses raies d'émission dont la longueur d'onde est parfaitement connue. On peut placer une telle lampe devant le télescope, mais le module de calibration Alpy rend les choses beaucoup plus simples, et permet ainsi une grosse productivité.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e Le module de calibration Alpy embarque une lampe Argon-néon dont le spectre est parfaitement connu.\u003c\/p\u003e","brand":"Shelyak","offers":[{"title":"Default Title","offer_id":44968070643997,"sku":"SHK-PF0037","price":1279.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PF0037-Alpy-guiding-module-T198x210_135_w__55288.1671741838.1280.1280.png?v=1684348651"},{"product_id":"shelyak-el0037","title":"Shelyak Thorium-Argon Lamp for Shelyak Spectrographs","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eElement Composition: Thorium-Argon (ThAr)\u003c\/li\u003e\n\u003cli\u003eLamp Type: Hollow Cathode Lamp (HCL)\u003c\/li\u003e\n\u003cli\u003ePrimary Application: High-resolution spectrograph calibration\u003c\/li\u003e\n\u003cli\u003eDesigned For: Shelyak eShel and Whoppshel spectrographs\u003c\/li\u003e\n\u003cli\u003eOutput: Dense, well-defined emission lines across the spectrum\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eThorium-Argon Lamp for Shelyak Spectrographs\u003c\/h2\u003e\n\u003cp\u003eThis Thorium-Argon (ThAr) hollow cathode lamp is the reference calibration source for Shelyak's high-resolution eShel and Whoppshel spectrographs. It is engineered to produce a rich spectrum of sharp, distinct emission lines, providing the necessary data points for an exceptionally precise wavelength calibration across the entire visible spectrum. This component is the replacement bulb for the eShel calibration module, enabling you to maintain the scientific accuracy of your spectroscopic observations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA High-Density Emission Line Source for Echelle Calibration\u003c\/h3\u003e\n\u003cp\u003eThe accuracy of any spectrograph is fundamentally limited by the quality of its wavelength calibration. Thorium-Argon is the standard for professional instruments because it provides thousands of well-characterized emission lines. For an echelle spectrograph, which spreads light into multiple overlapping orders, this density of lines is critical for correctly identifying wavelengths and achieving sub-Angstrom accuracy.\u003c\/p\u003e\n\u003cp\u003eUsing this ThAr lamp, you can create a master calibration frame that maps the unique optical path of your system. This allows the instrument software to precisely assign a wavelength to every pixel on the sensor, transforming raw data into a scientifically valid spectrum for radial velocity studies, stellar classification, and chemical composition analysis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eReplacement Bulb: Essential System Requirements\u003c\/h3\u003e\n\u003cp\u003eThis product is the Thorium-Argon hollow cathode lamp bulb only. It is intended as a direct replacement for a depleted or damaged lamp within an existing Shelyak eShel calibration unit or for custom-built spectroscopic systems. It is not a standalone device and requires specific external hardware to operate.\u003c\/p\u003e\n\u003cp\u003eTo power the lamp and excite the gas to produce its characteristic spectrum, you must have a compatible high-voltage power supply and the appropriate interface cable. These components are part of the complete eShel calibration module but are not included with this replacement bulb. Please ensure your existing power supply and connections are in working order before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is this Thorium-Argon lamp used for in astronomy?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eThorium-Argon lamp\u003c\/strong\u003e is a calibration light source. It produces a very dense and well-known pattern of emission lines. By taking a spectrum of the lamp, astronomers can create a precise map of wavelengths onto the camera's sensor pixels, which is essential for analyzing the spectra of stars and other celestial objects accurately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this a complete, ready-to-use calibration unit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This is the \u003cstrong\u003ereplacement bulb only\u003c\/strong\u003e. It is a component that requires a separate high-voltage power supply and an interface cable to operate. It is designed to be installed into a device like the Shelyak eShel calibration module.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the Thorium-Argon lamp to calibrate my eShel spectrograph?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe lamp is installed in the eShel calibration module, which feeds the light into the spectrograph via a fiber optic cable. You will take a dedicated calibration exposure of the lamp's spectrum. Using software like Demetra, this known ThAr spectrum is compared to your image to create a precise wavelength solution for all subsequent scientific observations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is Thorium-Argon the standard for the Shelyak Thorium-Argon lamp?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThorium-Argon is the professional standard for high-resolution spectroscopy for two main reasons. First, it produces an extremely high density of emission lines across the visible spectrum. Second, these lines are very sharp and their wavelengths are known to an extremely high degree of accuracy, making the \u003cstrong\u003eShelyak Thorium-Argon lamp\u003c\/strong\u003e an ideal reference source.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat telescope is this Thorium-Argon lamp and eShel system best suited for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe eShel system, for which this \u003cstrong\u003eThorium-Argon lamp\u003c\/strong\u003e is a component, is typically used with Schmidt-Cassegrain or Ritchey-Chrétien telescopes in the 8\" to 14\" aperture range. The system is optimized for telescopes with focal ratios around f\/10, though it can be adapted to others. The goal is to achieve sufficient light grasp to record high-resolution spectra of moderately bright stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do I need to power this Thorium-Argon lamp?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a specific \u003cstrong\u003ehigh-voltage power supply\u003c\/strong\u003e designed for hollow cathode lamps, as well as the correct interface cable. These items are not included with the bulb. This lamp is intended as a direct replacement for the one included in the complete Shelyak eShel calibration module, which already contains the necessary power electronics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak_eShel_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eShelyak eShel Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/shelyak-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eShelyak 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shelyak","offers":[{"title":"Default Title","offer_id":52943028715805,"sku":"SHK-EL0037","price":1463.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak-Thorium-Argon-lamp-1_be0533dc-5749-40e8-a2c9-3a3d8e3f86fd.jpg?v=1789615859"},{"product_id":"shelyak-el0116","title":"Shelyak Spare Lamp for Flats","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReplacement Tungsten Lamp\u003c\/li\u003e\n\u003cli\u003eSpare Part for Flat-Field Calibrators\u003c\/li\u003e\n\u003cli\u003eEnsures Consistent, Repeatable Illumination\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eSpare Lamp for Flats\u003c\/h2\u003e\n      \u003cp\u003eThis is a direct replacement tungsten lamp for flat-field calibration units. It provides the stable, continuous-spectrum light source required for creating high-quality flat frames, ensuring your astrophotography is free from artifacts like dust motes and vignetting. Keeping a spare on hand is critical for preventing a burned-out bulb from ending an imaging session prematurely.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eTungsten Lamp: Consistent Illumination for Flat-Field Calibration\u003c\/h3\u003e\n      \u003cp\u003eA reliable light source is the foundation of accurate data calibration. This tungsten lamp is designed to deliver consistent output and color temperature, allowing you to build a reliable library of flat frames. Its incandescent nature produces a smooth, broadband spectrum ideal for calibrating both monochrome and color sensors without introducing unwanted spectral lines.\u003c\/p\u003e\n      \u003cp\u003eLamps are consumable components with a finite lifespan. Having this spare ensures that when your primary lamp eventually fails—often at the most inconvenient moment during a clear night—you can replace it quickly and continue your imaging run with minimal downtime. It is an essential part of any imager's field kit.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is this spare lamp for flats used for?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis is a replacement \u003cstrong\u003etungsten lamp\u003c\/strong\u003e intended for use in an astronomical flat-field calibration device (a \"flat box\" or \"flat panel\"). Its purpose is to provide a uniform, stable light source for taking flat frames, which are essential for correcting optical artifacts in your images.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need a spare lamp for my calibration unit?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eLike any incandescent bulb, the lamp in your flat box has a limited operational life and will eventually burn out. This can happen without warning. Keeping a spare lamp on hand ensures that a simple bulb failure doesn't ruin an imaging session, allowing you to replace it in the field and continue your work.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a tungsten lamp used for creating flat frames?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eTungsten filaments produce a continuous, broadband spectrum of light. This is ideal for calibration because it evenly illuminates pixels across the entire sensor, working well for both \u003cstrong\u003emonochrome\u003c\/strong\u003e and \u003cstrong\u003eone-shot-color\u003c\/strong\u003e cameras without the emission line spikes found in other lamp types like fluorescent or some LEDs.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs this spare lamp compatible with my specific flat panel?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis is a spare part designed for specific models of flat-field generators. As compatibility varies, you should consult the manual for your calibration device to confirm that this is the correct replacement lamp before purchasing.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow will this spare lamp help when imaging faint targets like the Horsehead Nebula (B33)?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eImaging faint targets like the Horsehead Nebula (B33) requires aggressive contrast stretching, which greatly exaggerates any dust on your sensor or vignetting in your optical train. A high-quality flat frame, taken with a stable light source like this tungsten lamp, allows your software to perfectly remove these defects. This ensures the faint, delicate details of the nebula are not obscured by artifacts.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes a good flat frame matter for bright targets like the Orion Nebula (M42)?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, absolutely. While bright objects like the Orion Nebula (M42) may not require as much stretching, an uncalibrated image will still show distracting dust rings and darkened corners (vignetting). Using a flat frame created with this lamp ensures a clean, evenly illuminated final image, allowing the full dynamic range and structure of the nebula to be presented correctly.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003c\/ul\u003e","brand":"Shelyak","offers":[{"title":"Default Title","offer_id":52943029535005,"sku":"SHK-EL0116","price":17.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak-Spare-lamp-for-flats-1_3fa02340-a558-4313-92a5-0c321a40f757.jpg?v=1789615883"},{"product_id":"shelyak-pf0012","title":"Shelyak eShel Calibration Module","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eContains Thorium-Argon (ThAr) and Flat-Field Lamps\u003c\/li\u003e\n\u003cli\u003eDesigned for eShel and Whoppshel Spectroscopes\u003c\/li\u003e\n\u003cli\u003eCompatible with other fiber-fed Echelle systems\u003c\/li\u003e\n\u003cli\u003eRemotely controlled via RS 232 interface\u003c\/li\u003e\n\u003cli\u003eIntegrates with Demetra and Audela software\u003c\/li\u003e\n\u003cli\u003eControls FIGU mirror for source selection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eShelyak eShel Calibration Module\u003c\/h2\u003e\n\u003cp\u003eThe Shelyak eShel Calibration Module is an essential component for high-resolution spectroscopy, providing the necessary Thorium-Argon (ThAr) and flat-field light sources for professional-grade data reduction. Designed for seamless integration with the eShel and Whoppshel spectroscopes, this unit automates the entire calibration process. It allows you to acquire precise wavelength references and correct for instrument signatures remotely, ensuring your scientific data is both accurate and repeatable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThorium-Argon and Flat-Field Lamps for Full Calibration\u003c\/h3\u003e\n\u003cp\u003eThis module houses the two critical light sources required for echelle spectroscopy. The Thorium-Argon lamp produces a dense forest of known emission lines across the visible spectrum, serving as an absolute reference for wavelength calibration. The internal flat lamp illuminates the entire optical path, allowing you to create master flat fields to correct for pixel-to-pixel variations in the sensor and remove artifacts like dust shadows.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Remote Control for Automated Observations\u003c\/h3\u003e\n\u003cp\u003eThrough its RS 232 interface, the eShel Calibration Module connects directly to your control computer, enabling full remote operation from software like Demetra or Audela. This integration extends to controlling the FIGU mirror, which selects the light source fed to the spectroscope. You can programmatically switch between capturing your science target from the telescope and acquiring calibration frames without any manual intervention, streamlining your workflow for unattended or robotic observations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the Shelyak eShel Calibration Module?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe eShel Calibration Module provides the two light sources necessary for calibrating high-resolution echelle spectrographs. It contains a \u003cstrong\u003eThorium-Argon (ThAr) lamp\u003c\/strong\u003e for precise wavelength calibration and a \u003cstrong\u003eflat lamp\u003c\/strong\u003e for creating flat-fields to correct for detector and optical path imperfections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the eShel Calibration Module with a non-Shelyak spectroscope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While it is designed for native integration with the Shelyak eShel and Whoppshel, the module can be used to calibrate any other fiber-fed Echelle spectroscope that requires ThAr and flat-field illumination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does remote control of the eShel Calibration Module work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe module is controlled via an \u003cstrong\u003eRS 232 serial interface\u003c\/strong\u003e from your PC. It integrates directly with acquisition software like \u003cstrong\u003eDemetra\u003c\/strong\u003e or \u003cstrong\u003eAudela\u003c\/strong\u003e, allowing you to turn the lamps on\/off and switch the FIGU mirror between the telescope and calibration sources as part of an automated observing sequence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy are both a ThAr and a flat lamp needed for the eShel?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eEach lamp serves a distinct purpose:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThorium-Argon (ThAr):\u003c\/strong\u003e Produces a spectrum with thousands of well-documented emission lines. These act as a \"ruler\" to accurately map pixels on your detector to specific wavelengths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat Lamp:\u003c\/strong\u003e Provides a uniform, featureless light source. This reveals pixel sensitivity differences, vignetting, and the location of dust on your optics, allowing these effects to be mathematically removed from your science images.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the eShel Calibration Module improve measurements of a star like 51 Pegasi?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen searching for exoplanets via the radial velocity method, as was done with 51 Pegasi, incredibly small Doppler shifts in the star's spectrum must be measured. The ThAr lamp in the eShel Calibration Module provides the stable, high-precision wavelength reference required to detect these minute shifts, making such scientific work possible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I am building a spectral library with my Whoppshel, is this module necessary?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is essential for creating an accurate library. The flat lamp corrects instrumental signatures, ensuring the spectral profile you record is that of the star, not your equipment. The ThAr lamp provides the absolute wavelength calibration, so you can confidently compare your spectra to other observations and databases.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eeShel, Whoppshel, and other fiber-fed Echelle spectrographs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration Sources\u003c\/td\u003e\n\u003ctd\u003eThorium-Argon (ThAr) Lamp, Flat Lamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Interface\u003c\/td\u003e\n\u003ctd\u003eRS 232\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoftware Integration\u003c\/td\u003e\n\u003ctd\u003eDemetra, Audela\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemote Functions\u003c\/td\u003e\n\u003ctd\u003eLamp control, FIGU mirror source selection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak_eShel_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eShelyak eShel Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak_eShel_Calibration_Unit_Upgrade_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eShelyak eShel Calibration Unit Upgrade Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak_eShel_Calibration_Power_Supply_Addendum_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eShelyak eShel Calibration Power Supply Addendum Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/shelyak-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eShelyak 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shelyak","offers":[{"title":"Default Title","offer_id":52943035564317,"sku":"SHK-PF0012","price":7882.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak-eShel-calibration-module-1_c0ff1be3-f396-41a5-882e-b70e961c715a.jpg?v=1789616054"},{"product_id":"shelyak-se0103","title":"Shelyak LISA Calibration Module","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eIntegrates with the Shelyak LISA Spectroscope\u003c\/li\u003e\n\u003cli\u003eInternal Halogen Lamp for Flat-Field Correction\u003c\/li\u003e\n\u003cli\u003eInternal Argon-Neon (Ar-Ne) Lamp for Wavelength Calibration\u003c\/li\u003e\n\u003cli\u003eDual 12V DC Power Inputs for Independent Lamp Control\u003c\/li\u003e\n\u003cli\u003eEnables Fully Remote Calibration Sequences\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eLISA Calibration Module\u003c\/h2\u003e\n\u003cp\u003eThe LISA Calibration Module adds essential remote capabilities to your LISA spectroscope, incorporating two internal lamps—a halogen flat lamp and an Argon-Neon calibration lamp. Power is supplied via two separate 12V inputs using standard 5.5\/2.5mm center-positive connectors, allowing for independent, automated control of your entire calibration sequence from a remote location.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAutomated Flats and Wavelength Calibration for the LISA\u003c\/h3\u003e\n\u003cp\u003eThis single module provides both sources required for professional-grade spectroscopic calibration. The internal halogen lamp produces a uniform, continuous spectrum, allowing you to create flat-field frames that correct for dust, vignetting, and pixel-to-pixel variations in your imaging sensor. The Argon-Neon (Ar-Ne) lamp produces a spectrum with well-defined emission lines at known wavelengths, providing the precise reference needed to accurately calibrate your data's wavelength scale.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDesigned for Remote Observatories with Dual 12V Inputs\u003c\/h3\u003e\n\u003cp\u003eThe key advantage of the LISA Calibration Module is its suitability for remote, unattended operation. It features two distinct 12V DC inputs, one for each lamp, enabling you to connect them to a relay box or switched power supply. This separation allows your automation software to trigger each lamp independently, running a full calibration routine—flats and wavelength references—without any manual intervention at the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the two lamps in the LISA calibration module?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe LISA calibration module contains two essential lamps for spectroscopy. The \u003cstrong\u003ehalogen lamp\u003c\/strong\u003e provides a smooth, continuous light source for taking flat-field frames, which correct for optical imperfections and sensor variations. The \u003cstrong\u003eArgon-Neon (Ar-Ne) lamp\u003c\/strong\u003e produces a spectrum with sharp, known emission lines, used to accurately calibrate the wavelength scale of your scientific data.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the LISA calibration module enable remote observations?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe module features two separate 12V power inputs, one for each lamp. This allows you to connect each lamp to an independent channel on a remote power switch or relay box. Your observatory automation software can then turn each lamp on and off in sequence to acquire calibration frames without you needing to be physically present at the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need two separate power outputs for the LISA calibration module?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, for automated remote operation, you need two independently switchable 12V DC outputs. This allows your software to trigger the halogen lamp for flats and the Ar-Ne lamp for wavelength calibration as separate steps in a sequence. Using a single output would require you to manually swap the power cable between inputs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power supply do I need for the LISA calibration module?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a 12V DC power source capable of supplying two outputs. The connectors on the module are 5.5 \/ 2.5mm barrel jacks with a center-positive polarity. These are common connectors for astronomical equipment, but power supplies are not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I'm studying the spectrum of Vega (Alpha Lyrae) with my C11 and LISA, how do I use the LISA calibration module?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn a typical workflow, after acquiring the spectrum of Vega, you would use automation software to trigger the LISA calibration module. First, it would turn on the halogen lamp to take several flat-field frames. Then, it would switch to the Argon-Neon lamp to record a wavelength calibration spectrum. These two calibration files are then used in software like Demetra to process your raw data of Vega into a scientifically accurate spectrum.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need to take flat frames with my LISA spectroscope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFlat frames are crucial for high-precision spectroscopy. They record the response of your entire optical system—including dust on the sensor or slit, and pixel-to-pixel sensitivity variations. By dividing your science image by a master flat, you remove these instrumental artifacts, ensuring that the spectral features you measure are from your astronomical target, not your equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eShelyak LISA Spectroscope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlat Lamp Type\u003c\/td\u003e\n\u003ctd\u003eHalogen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration Lamp Type\u003c\/td\u003e\n\u003ctd\u003eArgon-Neon (Ar-Ne)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003e2x 12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003e5.5 \/ 2.5mm, Center-Positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eLISA Calibration Module\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/shelyak-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eShelyak 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shelyak","offers":[{"title":"Default Title","offer_id":52943045755165,"sku":"SHK-SE0103","price":679.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak-LISA-calibration-module-1_26d9aa25-a5ec-4a83-98d1-77f0001bde3f.jpg?v=1789616277"},{"product_id":"shelyak-se0148","title":"Shelyak Argon-Neon Calibration Lamps","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePack of 3 replacement lamps\u003c\/li\u003e\n\u003cli\u003eArgon-Neon (ArNe) gas mixture\u003c\/li\u003e\n\u003cli\u003eOEM part for Shelyak spectrographs\u003c\/li\u003e\n\u003cli\u003eCompatible with Alpy, LHIRES III, LISA, and UVEX\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eShelyak Argon-Neon Calibration Lamps\u003c\/h2\u003e\n\u003cp\u003eThis pack contains three genuine Shelyak Argon-Neon (ArNe) lamps, ensuring you have the necessary spares on hand to maintain precise wavelength calibration for your spectrograph. These OEM ampoules are the factory-specified component for generating the reference emission lines required for accurate scientific work.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e3-Pack of OEM Argon-Neon Calibration Lamps\u003c\/h3\u003e\n\u003cp\u003eAccurate wavelength calibration is fundamental to spectroscopy, and it depends entirely on a stable, known emission source. These Argon-Neon lamps produce a distinct and well-documented pattern of emission lines, which software like Demetra uses to create a precise dispersion model for your instrument. This pack of three ensures you can quickly replace a depleted or failed lamp, minimizing downtime and preventing loss of calibration accuracy during an observing run.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEssential Spares for Alpy, LISA, and UVEX Spectrographs\u003c\/h3\u003e\n\u003cp\u003eThese Argon-Neon lamps are the official replacement parts for a range of Shelyak spectrographs. They are confirmed to be compatible with the calibration modules for the Alpy series, LHIRES III, LISA, and UVEX instruments. Keeping spares is critical, as calibration lamps have a finite operational life and their output can dim over time, leading to weak calibration frames and reduced accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen should I replace the Argon-Neon lamp in my Shelyak spectrograph?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou should replace your Argon-Neon lamp when you notice that your calibration frames require significantly longer exposure times to achieve a good signal, or if the lamp fails to ignite entirely. A dimming lamp can compromise the accuracy of your wavelength calibration, so proactive replacement is recommended for critical research.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre these Argon-Neon lamps compatible with the LHIRES III spectrograph?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, these are the correct OEM replacement lamps for the Shelyak LHIRES III spectrograph's calibration module. They provide the necessary Argon and Neon emission lines for accurate calibration across its high-resolution range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of an Argon-Neon lamp in an Alpy 600?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn the Alpy 600, the Argon-Neon lamp serves as a precise wavelength reference. When you take a calibration image, the spectrograph records the distinct, fixed-wavelength emission lines from the lamp. Software then uses the known positions of these lines to build a mathematical model that assigns a precise wavelength to every pixel on the sensor, which is essential for analyzing your science target's spectrum.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I verify a new Argon-Neon lamp is working with Demetra software?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAfter installing a new Argon-Neon lamp, connect to your spectrograph and take a new calibration exposure in the Demetra software. You should see a bright, clear pattern of sharp emission lines. If the lines are significantly brighter and more distinct than with your previous lamp at the same exposure setting, the new lamp is working correctly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs any special handling required for these Argon-Neon lamps?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese lamps are glass ampoules and should be handled with care to avoid breakage. While the gas inside is inert and not harmful in these small quantities, the primary concern is the fragile nature of the glass. Always refer to your specific spectrograph's manual (e.g., Alpy, LHIRES III) for detailed installation instructions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre these lamps compatible with the Shelyak UVEX spectrograph?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the vendor catalog confirms that these Argon-Neon lamps are compatible with the Shelyak UVEX spectrograph's calibration module. They serve as the primary reference source for wavelength calibration with this instrument.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eShelyak Alpy, LHIRES III, LISA, and UVEX calibration modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGas Mixture\u003c\/td\u003e\n\u003ctd\u003eArgon-Neon (ArNe)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e3 Lamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eArgon-Neon Lamp Ampoule\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak_Alpy_Calibration_Module_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eShelyak Alpy Calibration Module Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/shelyak-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eShelyak 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shelyak","offers":[{"title":"Default Title","offer_id":52943048900893,"sku":"SHK-SE0148","price":52.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak-Argon-Neon-lamps-1_394dcd1e-2189-463e-89b2-9cdab86a8d89.jpg?v=1789616368"}],"url":"https:\/\/davidastro.com\/fr\/collections\/spectro-calibration.oembed","provider":"David Astro","version":"1.0","type":"link"}