Photosites of Karel Odink       photo @ odink.ch

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Trifid nebula; M20; ↕ 5000 LY; ☼ 8.5 mag; 900mm; ƒ4.5; Gain120; 45x240" Ha+OIII; 12x8mm; Mettauerberg (.38 mcd/m2); 15.07.23