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Дата изменения: Thu Sep 20 10:19:52 2001
Дата индексирования: Sat Dec 29 00:24:03 2007
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Поисковые слова: vallis
NGC 3293: A Bright Young Open Cluster
Astronomy Picture of the Day
    


NGC 3293: A Bright Young Open Cluster
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NGC 3293: A Bright Young Open Cluster
Credit: David Malin (AAO), AATB
Explanation: Hot blue stars shine brightly in this beautiful, recently formed galactic or "open" star cluster. Open cluster NGC 3293 is located in the constellation Carina, lies at a distance of about 8000 light years, and has a particularly high abundance of these young bright stars. A study of NGC 3293 implies that the blue stars are only about 6 million years old, whereas the cluster's dimmer, redder stars appear to be about 20 million years old. If true, star formation in this open cluster took at least 15 million years. Even this amount of time is short, however, when compared with the billions of years stars like our Sun live, and the over-ten billion year lifetimes of many galaxies and our universe. NGC 3293 appears just in front dense dust lane emanating from the Carina Nebula.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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NASA Official: Jay Norris. Specific rights apply.
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& Michigan Tech. U.

Based on Astronomy Picture Of the Day

Publications with keywords: open cluster - star formation
Publications with words: open cluster - star formation
See also:
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