ASSA Top 100 Deep Sky Objects
# Object ID Bennett ID Type Size Con RA Dec D Vis Interesting Facts Distance from Discoverer Earth (light- years) 1 NGC 55, LEDA 1014 Glxy 32’x5.6’ Scl 00 15 – 39 11 06,25 Sep–Feb The String of Pearls. A barred galaxy that is 7200000 James Dunlop on August 4, 1826 edge-on to us. It has a bright elongated center with a small round cloud to the east of it. If you look to the side of it while still concentrating on the object you might be able to see additional bright clouds and dark Ben 1 rifts in this galaxy. 2 NGC 104, 47 Tucanae Glcl 31’ Tuc 00 24 – 72 05 05,06 Sep–Feb The cluster appears roughly the size of the 16700 Abbe Lacaille from South Africa, 1751. At the full moon in the sky under ideal conditions. Cape, Abbé wanted to test Newton's theory of It is the second brightest globular cluster in gravitation and verify the shape of the earth in the the sky (after Omega Centauri), and is southern hemisphere. His results suggested the noted for having a very bright and dense Earth was egg-shaped not oval. In 1838, Thomas core. It is also one of the most massive Maclear who was Astronomer Royal at the Cape, globular clusters in the Milky Way, repeated the measurements. He found that de containing millions of stars Lacaille had failed to take into account the gravitational attraction of the nearby mountains. Ben 2 3 NGC 247, LEDA 2758 Glxy 18’ x 5’ Cet 00 47 – 20 46 06,25 Sep–Feb Very dusty galaxy therefore not bright, 11000000 ? Ben 3 magnitude 9.2, challenging to find.
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