The hunt for Be stars outbursts

The hunt for Be stars outbursts

The hunt for Be stars outbursts 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 outburst ?...
Improved performance of the eShel spectroscope

Improved performance of the eShel spectroscope

eShel performance improvement : long live eShel II ! The Hδ line (4101Å) now accessible! 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 information in the blue, and we have...
AG Draconis, Shelyak Spectros in the spotlight

AG Draconis, Shelyak Spectros in the spotlight

AG Draconis, Shelyak Spectros in the spotlight ! 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 undergoes a major...
A new website for Shelyak !

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

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

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

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

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 are...
Making Science with an Alpy

Making Science with an Alpy

Making Science with an Alpy The last paper in Astronomy & Astrophysics magazine (A&A) “New outburst of the symbiotic nova AG Peg after 165 years “ is based on spectra collected by observers from all around the world (12 nations represented) with Hubble,...
Spectro Star Party OHP 2017

Spectro Star Party OHP 2017

Spectro Star Party OHP 2017 Like every year for more that 10 years, we actively participated to the OHP 2017 spectro star party. This meeting takes place in the wonderful site of Observatoire de Haute Provence (http://www.obs-hp.fr/welcome.shtml). This year, it was...
Spectroscopy : practical guide

Spectroscopy : practical guide

Spectroscopy : practical guide The french version of the book is now a reference in the Astronomical community. It has been rewarded by a lot of great comments from readers, and papers in magazines. It is now available in english : Successfully Starting in...