Spectroscopy, from initiation to performance
CEO of Shelyak Instruments eShel III in few words The eShel III spectroscope is one of the flagship instruments in the Shelyak Instruments product line. This is the third generation of this instrument, which combines high resolution with a wide spectral range. This...
By Olivier Garde The eShel II spectroscope features an 85-mm focal-length camera lens that is no longer manufactured; an alternative had to be found, so Shelyak Instruments designed its own 122-mm focal-length Petzval-type lens. This “custom” design has made it...
Spectroscopy, from initiation to performanceThe BLOG at the service of the astronomical community By Olivier Garde The eShel II featured an 85mm focal length camera lens which is no longer manufactured; an alternative had...
The OHP 2024 spectroscopy course will take place from Tuesday July 9th to sunday july 14th. This course is jointly organized by STAROS Projects and Shelyak Instruments, and the official language is French.Pre-registration for the course As every year, we give priority...
It's always a pleasure to announce a new instrument in our catalog, but this pleasure is increased by the fact that this instrument has been widely requested and even suggested by several observers. It was Robin Leadbeater - many years ago - who first alerted us to...
How did a team of amateur astronomers become co-authors of an internationally renowned scientific publication?An association of amateur astronomers 2SPOT[1] is a public-interest scientific association created in 2019 by five amateur astronomers (Stéphane...
At the end of this article, you will find the different presentations made by the course leaders!August 8th arrival at OHP Great day to plant setups at the Haute Provence Observatory. Amidst rosemary, myriads of little white snails and other small creatures, I arrived...
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 shift between low and mid resolution....
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 a nutshell.Sol'Ex, to startSol'Ex is a project designed, organized and led by Christian...
2SPOT: a spectro setup in ChileBy Olivier Garde, Pascal Le Dû, Lionel Mulato, Thomas Petit, Stéphane Charbonnel© Deep Sky Chile spotSince the 2000s, many amateurs have been installing remotely controllable telescopes on sites in Chile in order to compensate for the...
At first glance, it is curiosity that motivates any amateur who observes the sky. Sometimes this curiosity is rewarded by acquiring a very beautiful picture or by explaining a physical phenomenon that takes place thousands of light years from Earth, through spectroscopic observation.
On August 8, 2021, the recurrent nova RS Oph was observed in outburst at magnitude V = 5. The amateur community immediately mobilized to realize many spectra at various resolutions with various spectrographs (with resolving powers R = 600 to R = 30,000).
The very first tests of the UVEX prototype produced by Shelyak Instrument.
In astronomical spectroscopy, guiding camera is an important element, since it’s what makes it possible to point the right target (star, nebula, etc.), then to ensure precise guiding to inject the maximum light into the spectrograph slit.
Retrospective of Spectro party 2019 at OHP, photos, spectra and more…
Workshop au Nouveau Mexique les 22, 23 et 24 février 2019
Spectro Workshop in New Mexico on February 22, 23 and 24, 2019.
SPOX module : to remotely control the flat and calibration lamps for Alpy 600, Lhires III and LISA.
Retrospective of Spectro star party OHP 2018, photos, spectra and more…
eShel II: a new optimized doublet “bespoke” for the blue end