NGC 6888 (C 27) Crescent Nebula

The main target of the night was the Crescent Nebula. I imaged it with my usual telescope setup, N 150/750, Baader MPCC Mark III, Canon 1100D mod, HEQ5 with the resurrected guiding camera. I took 15×4 min ISO 800,  and just for fun, 2×8 min ISO 800. To my surprise, the sky allowed this, having almost no background fill inspite of the long exposure.

C 27, NGC 6888 [nebula in Cyg] Crescent nebula, Sarló-köd ø20′ [wiki] [simbad]  (tovább…)