M 42, M 43, NGC 1977 [edit: better process, 4 more shot]

Riveduta e corretta, questa volta ho usato due filtri, 13 scatti con un broadband skyglow della orion e 5 scatti con un H-Alpha 35nm baader

 

"The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated south[b] of Orion's Belt. It is one of the brightest nebulae, and is visible to the naked eye in the night sky. M42 is located at a distance of 1,344 ± 20 light years and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light years across. Older texts frequently referred to the Orion Nebula as the Great Nebula in Orion or the Great Orion Nebula." fonte wiki

 

Ho utilizzato un rifrattore ED Apo da 102mm con riduttore spianatore a f/5.5, 1 ora e 39 di posa totali, stack di 17 scatti a tempi variabili (max 7 minuti) con Filtro Broadband Skyglow Orion, 5 scatti con Filtro H-Alpha 35nm Baader, 16 darkframe. Su HEQ5 synscan e autoguida LVI 2 - Canon eos 50D modificata baader. - 800 iso

 

Pian Munè 1500metri s.l.m. - Saluzzo (CN)

Done