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Hohe Wand, 15. November 2006, 21:00
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The Pleiades (M45 or the Seven Sisters) is the name of an open
cluster in the constellation of Taurus. With a distance of 440ly
(light years), it's among the nearest of all open clusters. The
cluster is dominated by hot blue stars, which have formed within the
last 100 million years. Dust that forms faint reflection nebulosity
around the brightest stars is an unrelated dust cloud that the stars
are currently passing through. M45 will survive for about another 250
million years, when it will have dispersed due to gravitational
interactions with the spiral arms of the galaxy and giant molecular
clouds. |
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| | Instrument: | Pentax 75 SDHF | | | Camera: | Canon 20D | | | Mount: | Vixen Sphinx | | | Exposure: | 65 minutes total at ISO800 (13x5min + 7d) | | | Image Processing: | Iris, NeatImage, Photoshop |
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