An exoplanet collision
An exoplanet collision How did a team of amateur astronomers become co-authors of an internationally renowned scientific publication? 2SPOT An association of amateur astronomers 2SPOT[1] is a public-interest scientific association created in 2019 by five...
Newsletter September 2023 – EN
Newsletter September 2023 – EN This newsletter announces the new website, as well as information about products and community activities. Click here to access the Newsletter....
Announcement Spectro training at OHP – 2023
Announcement Spectro training at OHP – 2023 NEW FORMULA: Shelyak is pleased to announce the opening of registration for the 2023 spectroscopy course to be held at OHP. More info on the dedicated page. Registration and...
Shelyak spectroscopes workshop
Shelyak spectroscopes workshop Discover Shelyak’s spectroscopic workshops, where you can learn more about our instruments and familiarize yourself with them.These Zoom workshops have been recorded and the replay is available on our Youtube channel. Tutorial...
Newsletters Archive
Newsletters Archive You’ll find all our previous newsletters archived here. Newsletters 2022 “Re-enchanting the world” NL Highlights “Bring your stone to the building”. NL Highlights UVEX and its motorization NL Highlights...
Remote Spectroscopy – the UVEX Motor Unit
Remote Spectroscopy – the UVEX Motor Unit When looking to upgrade from my LISA in 2020, the UVEX had much to recommend it. Its ability to access a broad spectral range was important as was the flexibility to both adjust the grating angle and to swap over gratings to...
Spectropolarimetry or how to observe the magnetic field of a star with a 72mm telescope and a 3D printed spectrograph
By Guillaume Bertrand I started astronomy at the age of 15, in 2003, with the opposition of Mars. I quickly joined the astronomy club “Village du ciel” based in Vendée to exchange with other amateur astronomers. My first instrument was a 114/900, I got all...
Sol’Ex & Star’EX: a new way to approach astronomy
Sol’Ex & Star’EX: a new way to approach astronomy The Sol’Ex project (later followed by Star’Ex) offers a new way of “entering Astronomy”: it is an approach that is affordable, simple, fun and fascinating. Here is what it is in...
The Time Box: Use for dating asteroid occultations
The TimeBox Use for asteroid occultation dating. By Daniel Verilhac, amateur astronomer Introduction The observation of stars occultations by asteroids is an exciting sport, it allows with few means to contribute to science. It is an excellent playground for amateurs...2SPOT: a spectro setup in Chile
2SPOT: a spectro setup in Chile By Olivier Garde, Pascal Le Dû, Lionel Mulato, Thomas Petit, Stéphane Charbonnel © Deep Sky Chile spot Since the 2000s, many amateurs have been installing remotely controllable telescopes on sites in Chile in order to compensate for the...
UVEX, to write a new page in astronomy
UVEX, to write a new page in astronomy by François Cochard We are happy to announce the arrival of a new instrument in the Shelyak range. This event is important for several reasons. It’s a sign of the dynamism of the astronomical community, which always pushes...
Nearby or in thousands of km, take control of your calibration & flat lamps for Alpy, Lhires III and LISA.
Nowadays, it is more and more frequent to remote control our telescopes. It brings some comfort but also a better quality of observation – because the less we touch the instrument, the less we risk to break the tuning. It is particularly true in spectroscopy....
Improved performance of the eShel spectroscope
eShel performance improvement : long live eShel II !The Hδ line (4101Å) now accessible!by François Cochard and Olivier Garde Since a few months, we offer optical fibers that have a better performance in the blue part of the spectrum. There is a lot of astrophysical...