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,...
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....
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
The hunt for Be stars outburstsBy Olivier GardeBe 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...
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...
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...
A new website for Shelyak !
The new Website of Shelyak Instrument is on-line! It has been several months since we work on this new tool, and all the team of Shelyak Instruments is proud to show you the fruit of this work. With this new site, we have several objectives: To offer you a better...
New faces within Shelyak Instruments I have the pleasure to announce some new important changes are taking place at Shelyak Instruments. Over the last couple of months, we have been busy implementing new management tools, and we are now ready to take the next step...
OHP Spectro Star Party 2018
OHP Spectro Star Party 2018 Every year, Association Aude and Shelyak Instruments organize the Spectro Star Party at the Observatoire de Haute Provence, in St Michel l’Observatoire, near Manosque in southern France. This year, the event will take place from 13th...
The french magazine “L’Astronomie” #91
The french magazine “L’Astronomie” #91 A french magazine publishes a long series of article on planetary nebulae and one in particular on the use of our spectrograph(s) to confirm the nature of newly discovered nebulaes… How amateur...
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...