Newsletter January 2024
Newsletter January 2024 This Newsletter announces the new Alpy 200 spectrograph, as well as various information regarding products and community activities. Click here to access the...
Alpy 200 : a “newcomer” to the Shelyak Instruments range
Alpy 200 : a “newcomer” to the Shelyak Instruments range It’s always a pleasure to announce a new instrument in our catalog, but this pleasure is increased by the fact that this instrument has been widely requested and even suggested by several...
The whoppshel on a 1m telescope
The whoppshel on a 1m telescope By Olivier Garde The Calern plateau, near Nice, is a site of the Observatoire de la Côte d’Azur, which is home to, among other things, the C2PU (Centre Pédagogique Planète et Univers) with 2 twin 1m-diameter telescopes. Every year...
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...
Mechanical interfaces
Mechanical interfaces Your spectroscope comes to fit between the telescope and one camera CCD (possibly a Digital camera – DSLR). imposes to arrange correct mechanical adapter rings and it is easy to get lost with all the possible configurations! We try to summarize...
Sn 1181, an unusual story …
Sn 1181, an unusual story … By Pascal Le Dû Pascal Le Dû is an amateur astronomer who observes the sky from Brittany point in France. It analyzes and lists the candidate planetary nebulae spotted by amateurs. He maintains the basis of French discoveries...
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...
RS Oph : the contribution of Shelyak spectrographs
RS Oph : the contribution of Shelyak spectrographs By Olivier Garde Introduction A Nova is a “new star” that appears in the sky. In fact, this star existed long before it was suddenly accessible to our instruments (even in a few rare cases to our eyes),...
Spectroscopic Observations on Beta Persei (Algol)
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
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...
UVEX by Shelyak : first light
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
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...
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...