Shelyak
Spectroscopy is the branch of amateur astronomy where a modest telescope still contributes real science. A spectrum reveals what a star is made of, how fast it is moving, and whether something has changed — measurements that are as valuable from a backyard as from a mountaintop. Shelyak Instruments builds the spectrographs that make this accessible. David Astro carries Shelyak products in Canada, in stock, with fast shipping across Canada and worldwide.
Resolution, target brightness and telescope aperture determine which instrument suits you. Tell us what you want to measure and we will match it.
Filtres
Shelyak Handheld Spectro
Convenient Dimensions: 115 x 25mm Visual Use Only for Bright Light Sources Ideal for Educational and Classroom Use Reveals Emission and Absorption...
Afficher tous les détailsShelyak High Performance 23µm Slit
23µm Slit Width Over 90% Reflectivity Protected Aluminum Coating 350-800nm Anti-Reflection Coating Compatible with ALPY 600 & UVEX Spectroscop...
Afficher tous les détailsShelyak High Voltage Power Connector for Shelyak PF0082
Enables Custom Cable Fabrication Designed for High-Voltage Applications Exclusive Compatibility with Shelyak PF0082 Power Supply Essential for Spe...
Afficher tous les détailsShelyak Instruments 200µm Calibration Optical Fiber - 20m
20 meter length for flexible observatory layouts 200µm core diameter optimized for calibration sources Secure FC-FC connectors for standard astron...
Afficher tous les détailsShelyak Instruments High Voltage Power Supply
Maximum Output Voltage: 310V DC Adjustable Current Range: 1 mA to 35 mA Required Input Power: 12V DC, 2A (not included) Internal 2A Fuse for Polar...
Afficher tous les détailsShelyak Lhires III 2-inch adapter
Adapts Lhires III Spectroscope to 2-inch focusers Provides a secure, non-flexing connection Enables use with a wider range of telescopes Machined ...
Afficher tous les détailsShelyak Lhires III adapter set (23 mm camera)
Connects cameras to the Shelyak Lhires III spectroscope Designed for cameras with a backfocus between 21.35 mm and 25.35 mm Optimized for common c...
Afficher tous les détailsShelyak Lhires III Photo Tripod Adapter
Mounts Lhires III Spectroscope to a Standard Photo Tripod Uses Standard Kodak Tripod Thread Ideal for Public Outreach and Solar Observation Simple...
Afficher tous les détailsShelyak Lhires III Slit Holder
Enables rapid slit changes for the Lhires III spectroscope Improves observational efficiency in the field Compatible with standard, wide, and phot...
Afficher tous les détailsShelyak Lhires III Spectroscope
High-Resolution Spectroscopic Analysis Optimized for Schmidt-Cassegrain Telescopes Integrated C-Mount Guide Port (0.8x) Mirror Slit for Precise Ta...
Afficher tous les détailsShelyak LISA & Lhires III Photometric Slit
Enables true spectrophotometry with LISA & Lhires III spectrographs Dual-width design for simultaneous high-resolution spectra and total flux ...
Afficher tous les détailsShelyak LISA Calibration Module
Integrates with the Shelyak LISA Spectroscope Internal Halogen Lamp for Flat-Field Correction Internal Argon-Neon (Ar-Ne) Lamp for Wavelength Cali...
Afficher tous les détailsShelyak LISA Near-Infrared Conversion Kit
Extends Spectral Range to 650-1000nm Optimized for Near-Infrared (NIR) Spectroscopy Replaces Camera Ring to Correct NIR Chromatism Adds an Order F...
Afficher tous les détailsShelyak LISA Slit Holder
Enables rapid interchange of spectroscopic slits Designed specifically for the Shelyak LISA Spectroscope Compatible with standard, wide, and photo...
Afficher tous les détailsShelyak LISA Spectroscope (VIS)
Designed for spectroscopy of faint deep-sky objects Fast optical design optimized for modern telescopes Interchangeable slits to balance resolutio...
Afficher tous les détailsShelyak Main cable for SPOX module - 0.8m
0.8m (2.6 ft) Cable Length Connects Shelyak SPOX Control Module Compatible with Alpy 600, LISA, and Lhires III Spectrographs Dual Tiny XLR 4-pin F...
Afficher tous les détailsShelyak Main cable for SPOX module - 5m
5-meter (16.4 ft) length for flexible observatory setup Connects Shelyak SPOX remote control module Compatible with Alpy 600, LISA, and Lhires III...
Afficher tous les détailsShelyak Multiple Slit 15/19/23/35 µm
Four Selectable Slit Widths: 15µm, 19µm, 23µm, 35µm Reflective Slit Design for Maximum Throughput Compatible with Shelyak LISA & Lhires III Sp...
Afficher tous les détailsShelyak Optical kit for Sol’Ex spectroheliograph
Build a high-resolution solar spectroheliograph Achieves 0.03 nm resolution at 650 nm Tunable across the 400 nm to 700 nm visible spectrum Interna...
Afficher tous les détailsShelyak Optical kit for Star'Ex HR spectrograph - additional kit for Sol'Ex
Enables spectral resolution up to R=30,000 Covers the visible spectrum from 400 nm to 700 nm Designed for DIY 3D-printed spectrograph projects Int...
Afficher tous les détailsShelyak Optical kit for Star'Ex HR spectrograph - complete set
Achieve spectral resolutions from R=700 up to R=30,000 Covers the visible spectrum with a 400 nm to 700 nm wavelength range Designed as the optica...
Afficher tous les détailsShelyak Optical kit for Star'Ex LR spectroscope
Build a complete Star'Ex Low Resolution spectroscope Achieves a typical resolution of R=650 at 650 nm Designed for the visible spectrum from 400 n...
Afficher tous les détailsShelyak Optical kit for Star'Ex LR spectroscope - IR complement
Extends Star'Ex LR spectroscope range to 650 nm – 1000 nm Achieves a spectral resolution of R=650 with a 23-micron slit Designed for DIY 3D-printe...
Afficher tous les détailsShelyak Optical kit for SUNSCAN spectroheliograph by STAROS Projects
Enables construction of the STAROS Projects SUNSCAN spectroheliograph Allows solar imaging at user-selected wavelengths Provides the core optical ...
Afficher tous les détailsAmateur Spectroscopy Instruments
Spectrographs trade resolution against the faintness of the targets they can reach. Choosing well means knowing which side of that trade your programme sits on.
- Low-resolution spectrographs: Capture a broad spectrum from relatively faint targets, suitable for classifying stars, observing novae and studying emission-line objects.
- High-resolution spectrographs: Resolve fine line detail and small wavelength shifts for radial velocity and line profile work, requiring brighter targets and longer exposures.
- Echelle designs: Capture a wide wavelength range at high resolution simultaneously by stacking spectral orders, at higher cost and complexity.
- Calibration modules: Reference lamps that provide known wavelength lines, without which a spectrum cannot be accurately calibrated.
- Guiding provision: Keeping a star on a narrow slit for minutes requires integrated guiding, and this is a core part of the instrument rather than an add-on.
- Transmission gratings: Simple grating filters that thread into an eyepiece barrel, the least expensive way to record a first spectrum.
Why Choose David Astro for Shelyak
Spectroscopy has a steeper learning curve than imaging, and the equipment choice should reflect where you are starting.
- Programme-based recommendation: We ask what you want to measure, because a radial velocity programme and a nova monitoring programme need very different resolutions.
- Realistic aperture guidance: Spectroscopy spreads a star's light across a detector, so target brightness and aperture matter more than in imaging. We set expectations honestly.
- Starting point suggested: For a first spectrum we will often suggest a transmission grating before a slit spectrograph, since it teaches the workflow at a fraction of the cost.
- Authorized dealer: Full manufacturer warranty with support handled in Canada.
- Ships from Canada: No duties or brokerage fees for Canadian buyers.
Shelyak in Canada — Frequently Asked Questions
- What aperture do I need for spectroscopy?
- More than for imaging the same object, because the light is spread across a spectrum. Low-resolution work on bright stars is achievable with modest apertures; high resolution needs both aperture and bright targets.
- Can amateurs contribute real data?
- Yes, substantially. Amateur spectra of novae, symbiotic stars and Be stars feed into professional monitoring programmes, because professionals cannot cover every object every night.
- Where should I start?
- A transmission grating that threads into an eyepiece barrel records a recognizable spectrum for very little money and teaches the calibration workflow, which is the hard part.
- Do I need a calibration lamp?
- For quantitative work, yes. Without reference lines of known wavelength you cannot calibrate the spectrum accurately, which limits it to qualitative comparison.
Interested in spectroscopy?
Tell us your telescope and what you want to measure and we will suggest a starting instrument. In stock and shipping from Canada.