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rich cluster

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rich cluster [¦rich ¦kləs·tər]
(astronomy)
A galaxy cluster that has relatively many member galaxies.
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It lies 1,300 light-years from Earth, in the famous Orion Nebula, the kind of rich cluster of stars that is a common birth environment for most stars in our Milky Way galaxy, including our Sun.
Astronomers spot a pair of solar systems in the making by Asian News International
We all know about the butterfly bush, Buddleia davidii which helps to support a large number of butterflies and moths in mid to late summer, but are we all aware of Buddleia globosa, the orange ball Buddleia in full flower now, supporting hundreds of bees, butterflies and moths with its small but nectar rich clusters of brilliant orange flowers.
Do it this week... Best of the Bunch Buddleia globosa Notebook by Huddersfield Daily Examiner (Huddersfield, England)
00 Hardcover QB14 The 13 contributions in the 2007 edition of this annual series summarize recent development in understanding star formation, irregular planetary satellites, and the intergalactic medium in rich clusters of galaxies.
Annual review of astronomy and astrophysics; v.45, 2007 by SciTech Book News
 
 
 
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