翻訳と辞書
Words near each other
・ NGC 2040
・ NGC 206
・ NGC 2060
・ NGC 2070
・ NGC 2080
・ NGC 2082
・ NGC 21
・ NGC 210
・ NGC 2100
・ NGC 2119
・ NGC 2129
・ NGC 2146
・ NGC 2158
・ NGC 2169
・ NGC 2170
NGC 2174
・ NGC 2175
・ NGC 22
・ NGC 2204
・ NGC 2207 and IC 2163
・ NGC 2217
・ NGC 2232
・ NGC 2240
・ NGC 2241
・ NGC 2242
・ NGC 2244
・ NGC 225
・ NGC 2257
・ NGC 2261
・ NGC 2264


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NGC 2174 : ウィキペディア英語版
NGC 2174

NGC 2174 (also known as Monkey Head Nebula) is an H IIemission nebula located in the constellation Orion and is associated with the open star cluster NGC 2175.〔 It is thought to be located about 6,400 light-years away from Earth. The nebula may have formed through hierarchical collapse.
There is some equivocation in the use of the identifiers NGC 2174 and NGC 2175. These may apply to the entire nebula, to its brightest knot, or to the star cluster it includes. Burnham's ''Celestial Handbook'' lists the entire nebula as 2174/2175 and does not mention the star cluster.〔Robert Burnham, Jr, ''Burnham's Celestial Handbook'', Dover, 1978, p. 1280.〕 The NGC Project (working from the original descriptive notes) assigns NGC 2174 to the prominent knot at J2000 , and NGC 2175 to the entire nebula, and by extension to the star cluster. Simbad uses NGC 2174 for the nebula and NGC 2175 for the star cluster.〔
〔(【引用サイトリンク】 work=Results for NGC 2175 )
==References==


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 2174」の詳細全文を読む



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