Spectroscopic observations on Beta Persei (Algol) By Jörg Schirmer I had my first contact with astronomy when I was 10 years old when my grandfather gave me the book “AUS FERNEN WELTEN” by Bruno H. Bürgel from 1920. That probably fascinated me so much that...
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...
The UVEX by Shelyak : first light By Olivier Garde I had the opportunity to test one of the two prototypes of the UVEX version made by Shelyak Instruments. This version of UVEX differs from the “3D printing” versions already produced by several teams with...
The twin Quasar By Etienne Bertrand (Etienne Bertrand) I have been practicing astronomy since 2008. Having not studied, it was through leisure and reading that I knew this fabulous field. When I started the observations, I remembered the summer nights spent looking at...
The Whoppshel in action on a 60 cm telescope By Olivier Garde The Hubert Reeves observatory in Mars (Ardèche – south of France)(Copyright photo : Olivier Garde) The Whoppshel spectrograph has been designed for telescopes of 0.6 to 1m in diameter class (or even...
Demetra : a new version is available By François Cochard and Olivier Garde During the last spectro party at OHP this summer (August 2019), Many of you used Demetra software with your Alpy 600 spectrograph. You gave us some suggestions on this occasion (you also...
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 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 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 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 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 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,...
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...
How to measure the redshift of a galaxy ? Recommanded equipment : Alpy, Lisa, Star Analyser Time : 1 to 4 h Low resolution spectroscopes are particularly well suited to the study of distant galaxies such as Seyfert galaxies or Quasars. We can easily calculate their...
Symbiotics stars Recommended equipment : Star Analyser, Lhires III, eShel, Alpy, Lisa Time : one night or a life time ! Summary Symbiotic stars are interacting binary red giant & hot stars. The red giant loose material which is accreted by the hot star (main...
