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Saturn Nebula NGC 7009


Saturn Nebula NGC 7009

Sketching: NGC 7009 Saturn Nebula (planetary) Date and Time: 8-25-2009, 4:15 4:50 UT Scope: 18” f/5 Dobsonian. 24 mm eyepiece 95x 8”x12” white sketching paper, 2H, HB, graphite pencils, light brown color pencil, blending stump, scanned and inverted Seeing: Pickering 7/10 Transparency: Average 3/5 Faintest stars visible overhead 4.3 Temperature: 20°C (68°F) Nebula magnitude: 8.0, Central star 11.5 Distance: 2000-4000 ly Location Constellation: Aquarius Position: R.A. 21 hrs 4 min Dec. -11° 22' Frank McCabe






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