rjxie 发表于 2003-12-2 13:20

[酷图] 英仙座双疏散星团——NGC 869 和NGC 884

NGC 869 & NGC 884: A Double Open Cluster
Credit & Copyright: Michael Fulbright (MSFAstro.net)
Explanation: Most star clusters are singularly impressive. Open clusters NGC 869 and NGC 884, however, are doubly impressive. Also known as "h and chi Persei", this unusual double cluster, shown above, is bright enough to be seen from a dark location without even binoculars. Although their discovery surely predates written history, the Greek astronomer Hipparchus notably cataloged the "double cluster". The clusters are over 7000 light years distant toward the constellation of Perseus, but are separated by only hundreds of light years.

portiff 发表于 2003-12-3 20:17

星很少,的确疏散

nicklee92 发表于 2003-12-21 19:38

哼

才不是

宇宙小子 发表于 2003-12-24 16:22

不觉,很好！！

ak49 发表于 2003-12-25 13:39

离远点儿看才好

周波 发表于 2003-12-25 13:59

不错！

是我见到的最好的了。

shistone 发表于 2003-12-31 18:14

真漂亮
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