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Solar Eclipse
[ Solar Eclipse ]

·Astronomy: Solar Eclipse - Total Eclipse-PHOTOGRAPHING A TOTAL ECLIPSE
·Astronomy: Solar Eclipse - SOLAR FLOWER
·Astronomy: Solar Eclipse - Einstein-AN ECLIPSE FOR EINSTEIN
·Astronomy: Solar Eclipse - TURNING OFF THE SUN
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·Astronomy: Solar Eclipse
 

 
 
Astronomy & Telescope Astronomy: Cluster and Nebula

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  Cluster and Nebula Cluster and Nebula: Astronomy: Cluster and Nebula - THE STUFF OF STARS

THE STUFF OF STARS

Nebulas can be placed into two broad categories: bright and dark. Bright nebulas are glowing clouds of dust and gas that would be invisible if they were not associated with stars.

 
 
  Posted by astronomy on Monday, November 29 @ 02:57:58 CST (23 reads)
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  Cluster and Nebula Cluster and Nebula: Astronomy: Cluster and Nebula - Observing-OPEN OBSERVING

OPEN OBSERVING

Also known as galactic clusters, open star clusters come in many shapes and sizes. A rich cluster may comprise several thousand stars, while a sparse one may contain only a dozen or so. Some clusters, such as the Pleiades (M45) in Taurus, are large and bright enough to see with the naked eye. Most, however, require a telescope.

 
 
  Posted by astronomy on Monday, November 29 @ 02:56:53 CST (21 reads)
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  Cluster and Nebula Cluster and Nebula: Astronomy: Cluster and Nebula - Nebula-OBSERVING NEBULAS

OBSERVING NEBULAS

Any telescope in the 4 to 6 inch (100 to 150 mm) range can show prominent nebulas in dark, clear skies, but the light grasp of larger scopes is a definite advantage when looking for less substantial nebulas.

 
 
  Posted by astronomy on Monday, November 29 @ 02:55:50 CST (20 reads)
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  Cluster and Nebula Cluster and Nebula: Astronomy: Cluster and Nebula - CITIES OF STARS

CITIES OF STARS

In contrast to open clusters, globular clusters are tight, spherical aggregations of tens of thousands to hundreds of thousands of stars. They contain very old stars and formed before the disk of our galaxy took shape. Globular clusters are actually distributed in a spherical halo around the Milky Way, but from our perspective in the disk of the galaxy, they seem concentrate around the galactic center, in the constellations of Sagittarius and Ophiuchus.

 
 
  Posted by astronomy on Monday, November 29 @ 02:54:51 CST (20 reads)
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  Cluster and Nebula Cluster and Nebula: Astronomy: Cluster and Nebula

CLUSTERS AND NEBULAS

The plane of our galaxy is a stellar crucible in which coalescing clouds of dust and gas give rise to stars and star clusters by the millions.

 
 
  Posted by astronomy on Monday, November 29 @ 02:53:38 CST (22 reads)
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