Astronomical spectroscopy for research, industry, education and leisure


The situation created by the coronavirus now disturbs our personnal and professionnal lives, at least for few weeks. In this context, I want to share with you these informations:
– Within Shelyak, we feel in solidarity with government measures to reduce the virus development, as much as possible. We therefore comply with the recommendations made by the government – and there are news every day.
– First of all, I want to protect our health; the health of Shelyak’s employees and partners with whom we are in daily contact, and more generally those of the people around us. From now, we are making all the arrangements to work to operate wherever possible, and we stop all trips.
– Nevertheless, we strive to maintain the company’s activity at the usual level; this is possible as long as we receive the material from our suppliers, and as the carriers are operational. To date, no objective elements have prevented normal operation.
– In any case, we will continue to be reachable by the usual means (mail, telephone, Skype, an do on). So don’t hesitate to ask us!

Take care,
François Cochard, March 16th, 2020.

Stars won’t look the same

Astronomical spectroscopie consists in spreading out the light coming from stars. This is the way to get a high number of informations on them. And this is suprisingly simple – even with a small instrument.

The TimeBox

The TimeBox is a device designed to date a precise timing of astronomic phenomena.

Demetra Alpy

New version available !!!

Demetra the software dedicated to spectral processing for the ALPY 600

Spectroscopy Practical Guide

This guide covers all the aspects necessary to accompany you to fast and quality observations with a slit spectrograph..

With handheld spectro and LHIRES LITE discover the spectroscopy without camera and without telescope.

Start in “spectro” (with camera and telescope) thanks to Star Analyser and Alpy 600

With LISA study the celestial objects of low intensity. Access radial speeds with LHIRES III

With the ESHEL the pros and the confirmed astronomers go on a hunt for exoplanets.

Shelyak instruments: expert in spectroscopy

Shelyak Instruments designs, manufacture and sell for more than 10 years a full range of spectroscopes dedicated to Astronomy, for Research, Industry, Training and Leisure. If you are just curious or experimented observer, we have an instrument for you. We can also adapt these products, or even create new ones on your specifications. We sell all over the world, directly from this website, and also through our resellers worldwide network.

This website gives you all technical information on each instrument, but also a lot of informations on the spectroscopy principles, ideas for project, reference data, and so on. We’re proud to be a dynamic actor of the growing community of spectroscopist, and we want to better and better answer to your needs. If you don’t find the product or the information you need on this website, please contact us directly.


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Products tested and guaranteed

Each product is tuned and tested before shipment. And it is guaranteed for one year.


Expert advice

You need an advice ?
Our experts can help you !
Contact us by mail, or at (33)4 76 41 36 81

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