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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Shelyak Alpy 200 Optical Core Module
Shelyak Alpy 200 Optical Core Module
Shelyak Alpy 200 Optical Core Module

Shelyak Alpy 200 Optical Core Module

par Shelyak
UGC SHK-SE0275
$338.00 - $338.00
$338.00
$338.00 - $338.00
$338.00
Égalisation de prix!
  • Converts an Alpy 600 into an Alpy 200 Spectrograph
  • Resolving Power of R~130 with a 23µm slit
  • Fast F/4 Aperture for high light throughput
  • Optimized for spectroscopy of faint targets
  • Requires existing Alpy 600 mechanical parts and slit
En rupture temporaire
Alerte de retour en stock
Info disponibilité
Admissible à la livraison GRATUITE aux USA pour les commandes de plus de 350$.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Alpy 200 Optical Core Module

    The Alpy 200 optical core module transforms your existing Alpy 600 into a fast F/4 spectrograph, delivering a resolving power of R~130 for analyzing the faintest targets. This module requires you to reuse the mechanical housing and a 23µm slit from your Alpy 600, providing a low-cost path to low-resolution spectroscopy.

    Convert Your Alpy 600 to an R~130 Spectrograph

    This module is designed specifically for astronomers who already own a Shelyak Alpy 600 spectrograph. By swapping the internal optics, you can repurpose your instrument for a different class of scientific work without purchasing an entirely new device. This is the optical heart of the Alpy 200, allowing you to achieve a resolving power of R~130.

    Please note this is not a complete spectrograph. It is an upgrade component that relies on the mechanical chassis and the slit from your Alpy 600, which are not included with this module. The conversion allows you to switch between high-resolution and high-sensitivity setups as your observing targets change.

    Alpy 200 vs. Alpy 600: The F/4 Advantage for Faint Targets

    The fundamental trade-off in spectroscopy is between resolution and sensitivity. While the Alpy 600 provides higher resolution for detailed analysis of brighter stars, the Alpy 200's fast F/4 optical design is engineered to maximize photon collection on faint, extended objects. You sacrifice resolving power to gain critical signal-to-noise on challenging targets.

    This makes the Alpy 200 configuration ideal for classifying supernovae, observing the spectral features of faint comets, or capturing data from low-surface-brightness nebulae. When every photon counts more than fine spectral detail, the R~130, F/4 setup of the Alpy 200 is the superior choice.

  • What is the primary purpose of the Alpy 200 optical core module?

    The Alpy 200 optical core module is an upgrade component that converts an existing Shelyak Alpy 600 spectrograph into a low-resolution, high-sensitivity Alpy 200. Its fast F/4 design and R~130 resolving power are optimized for capturing spectra from very faint astronomical objects.

    Do I need to own an Alpy 600 to use the Alpy 200 core module?

    Yes. This product is not a standalone spectrograph. It is designed exclusively for owners of the Alpy 600, as it requires the reuse of the Alpy 600's mechanical body and slit assembly.

    What parts from my Alpy 600 are required for the Alpy 200 conversion?

    You will need to use the complete mechanical housing of your Alpy 600 as well as the slit. The slit is a critical component that is not supplied with the Alpy 200 core module. The resolving power of R~130 is specified with a 23µm slit.

    How would the Alpy 200 module perform when observing a faint supernova in a distant galaxy?

    This is precisely the scenario where the Alpy 200 excels. For a faint supernova, collecting enough photons to get a usable signal is the main challenge. The fast F/4 optics gather light efficiently, allowing you to obtain a low-resolution (R~130) spectrum to classify the supernova type (e.g., Type Ia, Type II) and monitor its evolution, which would be difficult or impossible with a slower, higher-resolution spectrograph on the same telescope.

    Why would I choose the Alpy 200 module's R~130 resolution over the Alpy 600's for a faint comet?

    A faint comet's spectrum is characterized by broad emission bands from molecules like C2 and CN. High resolution is not needed to identify these features. The Alpy 200's low resolution and high throughput ensure you can capture a strong signal from the faint coma, making it a much more effective tool for cometary science than the higher-resolution Alpy 600 in this case.

    What does the F/4 aperture of the Alpy 200 module mean for my observations?

    An F/4 aperture signifies a very "fast" optical system, meaning it concentrates light onto the sensor more intensely than a "slower" system (like an F/8 or F/10). This drastically reduces exposure times needed to achieve a good signal-to-noise ratio, which is essential for faint, diffuse targets that require every available photon.

  • Resolving Power R ~130 with 23µm slit
    Aperture F/4

    • Alpy 200 Optical Core Module

      × 1

  • Shelyak 1-Year Warranty