M101.jpg
M101, Pinwheel Galaxy, ↕ 25 Mio LY, Ø 22', ☼ 7.9, 900 mm, ƒ4.5, Gain 100, 100x3 min + 60x5 min Ha+OIII, # 18x12 mm, le Tabagnoz (Bortle 4.3; 6x), 02-04.02.25