Photosites of Karel Odink       photo @ odink.ch

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Whirlpool Galaxy; M51; ↕ 23 Mio LY; Ø 11'x8'; ☼ 8.1 mag; 100 Mrd ✶✶; 900mm; ƒ4.5; Gain 120; 42x300"; 12x8mm; Lauwersoog (.27 mcd/m2); 26.05.23