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・ NGC 5408
・ NGC 5466
・ NGC 5474
・ NGC 5477
・ NGC 5490
・ NGC 55
・ NGC 5544
・ NGC 5545
・ NGC 5548
・ NGC 5562
・ NGC 5566
・ NGC 5579
・ NGC 5584
・ NGC 5585
・ NGC 559
NGC 56
・ NGC 5613
・ NGC 5614
・ NGC 5615
・ NGC 5624
・ NGC 5653
・ NGC 5665
・ NGC 5668
・ NGC 5676
・ NGC 5679 Group
・ NGC 5694
・ NGC 57
・ NGC 5705
・ NGC 5713
・ NGC 5746


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NGC 56 : ウィキペディア英語版
NGC 56
NGC 56 is a New General Catalogue entry for a supposedly observed astronomical body that does not exist.〔(Skyfactory deep sky catalog )〕〔(STScI Digitized Sky Survey query for NGC 56 )〕 This object was recorded by John Herschel early in his observations as part of his 1825 "sweep 14." He recorded only that, "about this place a considerable space seems affected with nebulosity." Astronomers have noted that the observation may have been of a reflection of a bright star which lies two degrees to the north of NGC 56's location. The other recorded observations by Herschel at this time included Messier 15, and were correctly located, so the error is not attributed to a general error in locating objects during the survey.〔(Dr. Harold Corwin "Not Found" Objects )〕
This supposed object is located at R.A. and Dec. .
A nearby galaxy that seems to fit the description is PGC 1107, but the galaxy is an order of magnitude fainter than most NGC objects, rendering it unlikely to have been seen by Herschel.
== See also ==

* History of astronomy

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 56」の詳細全文を読む



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