M109 Barred Spiral Galaxy in Ursa Major. Located in the bottom of the Big Dipper Bowl, M109 is located 46 million light years from earth and consists of approximately 19 Billion Stars with a diameter of 100,000 + light years. Pentax 105 SHDF APO with TV .80 reducer, Canon 10D, stack of 7x 4min exposures, Summit County, CO December 26, 2003