STAROS Team

...
Valerie Desnoux
Amateur astronomer, based in Paris

I started astronomy in 1978 and designed my first solar spectrograph in 1979. An internship at CERGA with Jean-Pierre Rozelot made me dream of the Pic du Midi... In 1990, I joined the T60 association for multiple spectrographic missions with CCD cameras. The first spectra of Zeta Tau were a revelation, and I initiated the first regular amateur survey of Be stars in 1992, after which I regularly visited the Pic du Midi, notably on professional missions using the Jean Rosch telescope on the heliometer, for which I designed the stage displacement counter. I have an asteroid to my name, 7718 Desnoux. Author of Visual Spec, the first amateur spectrography software published in 1995, I was part of the group that co-created the BeSS database ten years ago and publish monthly BeSS activity reports.

In 2020, the Sol'Ex adventure set me a new challenge with the creation of the first image processing software for fully automatic spectroheliographs: INTI. And to accompany the stellar spectrography version of Sol'Ex, the Star'Ex, I developed the interface for the SpecInti software. With an engineering degree in electronics (ISEP 86), I'm in charge of R&D for advanced interventional imaging projects at GE HealthCare, Buc, France.

...
Olivier Garde
Amateur astronomer

I discovered astronomy at the age of 10, when my parents gave me a Newton telescope for my birthday. a Newton 115/900 telescope. In 1996, I obtained a DU in Astronomy and Astrophysics from the Université University of Paris Sud XI. I also became interested in photometry (light curves of asteroids and variable stars). and variable stars). I also travelled the world to see total solar eclipses in South Africa, Mongolia, USA, Zimbabwe, Egypt, Spain, Iceland, Chile and Venezuela. Then, in 2000, thanks to Valérie Desnoux and Christian Buil, spectroscopy. I was also able to take part in many astronomical missions on mission telescopes such as the Saint-Véran observatory (Astroqueyras), the Hubert Reeves observatory in Mars in Ardèche, at the C2PU of the Côte d'Azur observatory on the Calern plateau, at the OHP on the 1.52m telescope. In 2017 I joined the Bess database team of spectra validators. In 2018, I joined the team at Shelyak Instruments (spectrograph manufacturer) as a technical consultant. In 2019 with Stéphane Charbonnel, Pascal Le Dû, Lionel Mulato and Thomas Petit, we create the 2SPOT association (Southern Spectroscopic Project Observatory Team), which operates 2 remote telescopes in Chile dedicated to spectroscopy (low and medium resolution). I take part in several collaborative programs collaborative programs in spectroscopy, and am author or co-author of numerous publications.

...
Matthieu Le Lain
Amateur astronomer

From an early age, my interest in astronomy evolved through various phases. I first explored the night sky through visual observation, then progressed to astrophotography. In 2012, I enriched my knowledge of astronomy by obtaining a University Diploma in Astronomy and Celestial Mechanics from Paris Observatory.

Around 2018, I plunged into the world of spectroscopy, which has become an essential part of my astronomical practice. This knowledge was consolidated when I obtained a University Diploma in Observational Astronomy Observatoire de la Côte d'Azur in 2023. By combining observation and spectroscopic analysis, we aim to raise awareness and encourage the exploration of this fascinating discipline through the development of new tools and uses.

...
Christian Buil
Amateur astronomer, born in 1956, former member of the Centre National d'Etudes Spatiales (French space agency)

Passionate about astronomy for... as long as I can remember. Involved in associations, the promotion of amateur astronomy and professional-amateur collaborations (AUDE association, Pic du Midi 60-centimetre telescope association, Rencontres de Carcassonne...). In high school, I started building my first spectrograph. January 1985, first amateur image with a CCD camera of my own design. In the 1990s, with a few friends in Toulouse, the Audine project, a do-it-yourself astronomical camera, widely distributed. In the 2000s, I threw myself into promoting astronomical spectrography to amateurs (instrument design, meetings and courses, observations: 51 Peg b in radial velocity, stellar magnetic fields...) At the end of 2019, I launched the Sol'Ex and Star'Ex projects to make astronomical spectrography even more accessible and share my enthusiasm for this wonderful discipline. Honorary member of the International Astronomical Union (GA Vienna, 2018), winner of the SAF Henri Rey prize in 2001 and 2022, asteroid 6820 Buil orbits our daily star.

...
Guillaume Bertrand
Amateur astronomer, born in 1987, based in Nantes

Passionate about astronomy, I've been a member of the "Village du ciel" association and the Société Astronomique de France since 2003. For a long time, I worked with a simple 114/900, systematically sharing my observations with the SAF planetary observations commission. From 2005 to 2009, I developed the AstroCalc planetary ephemeris calculation software. In 2018, I built a 400mm dobson dedicated solely to visuals and drawing. In 2021, I discovered spectroscopy and the ingenious Sol'ex/Star'ex project initiated by Christian Buil. I quickly decided to invest in the subject by building several spectrographs. I'm exploring several areas: Be stars, spectropolarimetry, double stars, chromospheric activity, etc., and developing tools to analyze the data. I love being able to repeat professional observations with minimal hardware configurations. I also try to promote spectroscopy to amateur astronomers and the general public through articles and conferences.