Spectro Party OHP 2019 : retrospective
Spectro Party OHP 2019 : retrospective by Olivier Garde The Spectro Star Party at Observatoire de Haute Provence in France took place from August 2sd to 7th, 2019 and hosted more than 50 attendes from very different levels. The weather allowed us to enjoy the 5 nights...
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...
Study of a spectroscopic binary with amateur setup
Study of a spectroscopic binary with amateur setup By David Antao David Antao started astronomy in 2001. In 2002 and 2003 he passed the CNED university diplomas, in Astronomy and Astrophysics. Long observer in visual, he begin spectroscopy in 2008, a field he knows...
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...
Spectroscopy Whorkshop SMSW-2
Spectroscopy Workshop SMSW-2 By Olivier Garde The second edition of the spectroscopy workshop SMSW-2 “Sacramento Mountains Spectroscopy Workshop”, was held in Las Cruces, New Mexico, on February 22nd, 23rd et 24th 2019 in the beautiful setting of...
Magnitude 17 with a LISA
Magnitude 17 with a LISA By Olivier Garde During a planetary nebula confirmation mission, we were able to use a LISA spectrograph on a 1m telescope, the T1m “Epsilon” of the C2PU. The C2PU has 2 twin telescopes. One is named Omicron (West dome) and 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,...
Quasar spectrum with a Lisa or an Alpy
Quasar spectrum with a Lisa or an AlpyBy Olivier GardeThe Lisa and Alpy spectrographs are particularly suited to the study weak objects. During the Spectro Party 2018 at OHP, we were able to realize the spectrum of a quasar of magnitude V = 16.52 with a 355mm...
Spectro Party OHP 2018 : retrospective
Spectro Party OHP 2018 : retrospectiveBy Olivier Garde The Spectro Star Party at the Observatoire de Haute Provence took place from July 13th to 18th 2018 and hosted more than 45 participants from very different levels. The weather allowed us to enjoy the 5 nights...
The hunt for Be stars outbursts
Hunting Be stars outbursts By Olivier Garde Be stars are B type stars, very hot and bright (as can be Rigel in Orion for example), but that sometimes present emission lines in addition, telltale sign of the fact that they are surrounded by a disk of matter. What is an...
AG Draconis, Shelyak Spectros in the spotlight
AG Draconis, Shelyak Spectros in the spotlight !By Olivier Garde AG Draconis is one of the most fascinating stars to observe, particularly through spectroscopy. This binary system consists of a red giant star and a white dwarf star. Every ten to fifteen years, it...
Planetary nebulae confirmation
Planetary nebulae confirmationBy Olivier Garde Recommanded equipment : Alpy, Lisa Time : about 4 h For several years, amateur astronomers have been discovering probable planetary nebula candidates thanks to their own images or by scrutinizing professional surveys...
One week-end dedicated to Spectroscopy, organised by BAA
One week-end dedicated to Spectroscopy, organised by BAA Attendees at the Spectroscopy Workshop, from left to right : David Salmon, George Faillace, Gareth, Cottrell, Ann Davies, Richard Green, Alain Barthez, Francois Cochard, David Boyd, Steve Cuthbert, Nick...
Scientific papers, radial velocities and eShel
Scientific papers, radial velocities and eShel SHELYAK Instruments has sold many eShel to professional observatories around the world. The results enable our clients to advance science with paperss. We do not systematically refer to these papers because there...