Photosites of Karel Odink       photo @ odink.ch

20231218-M97.jpg
Owl nebula; M97; ↕ 2000 LY; ☼ 10 mag; planetary nebula; 1600mm; ƒ8; Gain 120; 75x300" Ha+OIII; 17x12mm; le Tabagnoz (.35 mcd/m2); 17+18.12.23