A 34 minute exposure with an SBIG ST-6 CCD camera taken thru our 20 inch F/8.1 telescope. The field of view is about 5x7 arc minutes.
UGC 10502 is a face-on spiral galaxy in the Constellation of Draco. It is similar to the much closer galaxy M-33. UGC 10502 has a rather open shape with several knotty arms, and a rather small nucleus. This is a very low surface brightness galaxy and it took a 34-minute exposure to get good detail.
Based on the published red shift, (and a Hubble Constant of 62 Km/sec per Mpc) a rough distance estimate is 227 million light years, with a diameter of about 152,000 light years.
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George Normandin, KAS
December 12th, 2000