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M110 - Galaxy

  • Type: Dwarf Elliptical Galaxy

  • Discoverer: Messier, 1773

  • Size: 16,000 ly

  • Distance: 2.57 Mly

  • Constellation: Andromeda

My Notes: M110 (there is no name for it) was a bonus for me. When one goes to photograph M31 - Andromeda Galaxy, getting M110 in the same shot is almost a certainty. Despite their close optical proximity, M110 is 2 million times further away and 10 times smaller than Andromeda. I plan to give M110 its own photo when I get a higher powered lens in the future. See also M32, another dwarf galaxy next to Andromeda.

Messier Notes: “On the 10th of August, 1773, I studied the beautiful nebula in the girdle of Andromeda (No. 31) under a very good sky, using my achromatic refractor with a 68x magnification, in order to produce a drawing like the one for the nebula in Orion. I saw the nebula which LeGentil had discovered on Oct. 29, 1749 (No. 32). In addition, I saw a new, fainter situated north of the large one. It seemed unbelievable to me, that the faint nebula would not have been noticed by astronomers and myself since the discovery of the large one by Simon Marius in 1612, since the small one is in the same field of telescope when observing the large one.

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M101 - Pinwheel Galaxy