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Topic: Messier 81


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In the News (Sun 6 Dec 09)

  
  Aquarius - Wikipedia, the free encyclopedia
It is found in a region often called the Sea due to its profusion of watery constellations such as Cetus, Pisces, Eridanus, etc. Sometimes, the river Eridanus is depicted spilling from Aquarius' watering pot.
There are three deep sky objects that are on the Messier catalog, the Globular Cluster M2, Globular Cluster M72, and the Open Cluster M73.
Two planetary nebulae are found in Aquarius: NGC 7009, called the Saturn Nebula due to its resemblance to the planet, to the southeast of η Aquarii; and NGC 7293, the famous Helix Nebula, southwest of δ Aquarii.
en.wikipedia.org /wiki/Aquarius   (1012 words)

  
 Astronomy History Links Page
Charles Messier 1730-1817 Charles Messier is credited with the discovery of 20 comets, 13 were original discoveries.
He is also famous for his Catalog of Nebulae and Star Clusters now known as the Messier Catalog or Messier objects.
Amateur astronomers use this catalog in a variety of formats today as an aid in observing.
astronomywebguide.com /links_astronomyhistory.html   (6503 words)

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