M 52, NGC 7635 (Bubble Nebula)

The open cluster cluster left of the center is M 52 in the constellation of Cassiopeia. 36' toward the SW is the emission nebula NGC 7635, also known as the "Bubble Nebula" because of a faint arc of gas barely visible at this image scale. Also visible is a satellite trail passing right through the nebula. The bright red nebula on the far right is NGC 7538.

Instrument 8" Newtonian 800 mm f/4
Film Kodak PJ-400
Date 02 Jan. 2000, 02:15 - 02:46 UTC
Site Organ Pipe Cactus National Monument, Arizona
Image # 2000-02/16

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