M 51, also known as the Tourbillon galaxy (Whirlpool Galaxy in English) is a couple of galaxies located around 27.4 million light years in the constellation of Hunting dogs.
This famous couple is composed of a regular spiral galaxy massive whose diameter is estimated at 100 000 light years and a small irregular galaxy .
Spring star, it is one of the most famous galaxies of astrophotographers, with very pronounced colors and presenting beautiful nebulae, accentuated here by the joint use of a Halpha Hydrogen filter.
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Participatory science accessible to amateurs, collective projects of passionate amateurs: here are the collaborative works in which I had the chance and the pleasure to participate.
- The "Astropotos" group : a collective project of cumulative exposure time on common objects and reflection / work on tools and treatment process with a dozen astrophotographers
A full descriptive article of this project on the Photon Millenium website by Jean-Baptiste Auroux
Our Astrobin gallery
- Star Party : a video show in which I participate as a commentator with other enthusiasts, dedicated to the practice of Astrophotography (equipment, treatment, advice etc ...), on the Astrofleet Youtube channel
- The M27 project : a collaborative image of the famous Dumbbell nebula (short exposures and long exposures with two 250 and 300mm Newton telescopes and a 400mm Ritchey-Chretien)
- The St-Dr 61 Victor's Nebula : collaboration with the Strottner-Drechsler team to image this probable planetary nebula for the 1st time
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