My experience of the 2023 spectro course
At the end of this article, you will find the different presentations made by the course leaders! My experience of the 2023 spectro course August 8th arrival at OHP Great day to plant setups at the Haute Provence Observatory. Amidst rosemary, myriads of little white...
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...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 : Extreme spectra
UVEX : extreme spectra By Olivier Garde Introduction Through this article, I will show we can do extreme spectra in the near UV and the near IR with a UVEX equipped with the standard 600 gr/mm grating. This allows to obtain resolutions from R = 820 @ 350nm up to R...
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...
Creating an image via spectral scans
Creating an image via spectral scans By Lionel Mulato Lionel Mulato is an astrophotographer and spectroscopist, his observatory is based near Avignon. He studied physics at university and has been practicing astronomy as an amateur for many years. He discovered...
TimeBox : to accurately measure an occultation
TimeBox : to accurately measure an occultation By César VALENCIA-GALLARDO, February 2020 Timing of astronomical occultations and other astronomical phenomena need to be done in an absolute time scale with a precision of a few milliseconds in order to pull and compare...
How to choose your autoguiding camera in 2020 ?
How to choose your autoguiding camera in 2020 ? By Olivier Garde & François Cochard 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...
How I go about planning the acquisition and logging of a stellar spectra ?
How I go about planning the acquisition and logging of a stellar spectra ? By Forrest Sims Forrest Sims observes from his garden observatory in Gilbert Arizona. Having only bought his first telescope 5 years ago, Forrest was late to the astronomy party. Classical...
A compact telescope shelter
A compact telescope shelterBy Olivier Garde & François Cochard The open shelter (photo : François Cochard) Having a fixed installation is a dream for many astronomers, amateurs as well as professionals. This is particularly the case in spectroscopy, because the...
The Whoppshel, a high resolution echelle spectroscope
The Whoppshel, a high resolution echelle spectroscopeBy Olivier Garde The Whoppshel was born from the demand of our customers to have a higher resolution echelle spectroscope than the eShel for telescopes of one meter class. The whoppshel, with a resolution R = 30000,...
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...