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・ NGC 6603
・ NGC 6604
・ NGC 6624
・ NGC 663
・ NGC 6633
・ NGC 6642
・ NGC 67
・ NGC 6709
・ NGC 6712
・ NGC 6723
・ NGC 6729
・ NGC 6738
・ NGC 6741
・ NGC 6744
・ NGC 6745
NGC 6751
・ NGC 6752
・ NGC 6755
・ NGC 6756
・ NGC 6760
・ NGC 6781
・ NGC 6782
・ NGC 6786
・ NGC 6790
・ NGC 6791
・ NGC 68
・ NGC 68 group
・ NGC 6811
・ NGC 6818
・ NGC 6819


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NGC 6751 : ウィキペディア英語版
NGC 6751

NGC 6751 is a planetary nebula in the constellation Aquila. The nebula is estimated to be around 0.8 light-years in diameter. The star at the centre of the nebula has a surface temperature of approximately 140,000 K. It has been calculated to be roughly 6,500 light-years away from Earth. It was formed when a star collapsed and threw off its outer layer of gas several thousand years ago.
The nebula was the subject of the winning picture in the 2009 Gemini School Astronomy Contest, in which Australian high school students competed to select an astronomical target to be imaged by Gemini.
==See also==

* List of planetary nebulae

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「NGC 6751」の詳細全文を読む



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