| 词条 | NGC 2277 |
| 释义 |
| name = NGC 2277 | image = | caption = | credit = | epoch = J2000 | constellation = Gemini | ra = {{RA|06|47|47.0}}[1] | dec = {{DEC|+33|27|05}}[1] | dist_ly = | dist_pc = | appmag_v = | size_v = 0.6′ × 0.3′[2] | age = | notes = Asterism[2] | names = }}NGC 2277 is what appears to be an open cluster in the constellation Gemini. It was first observed on 20 April 1865 by the German astronomer Heinrich Louis d'Arrest.[2] However, it is simply an asterism formed by several stars in the sky appearing close together.[2] See also
References1. ^1 {{cite web|url=http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+2277&extend=no&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES|title=NED results for object NGC 2277|publisher=National Aeronautics and Space Administration / Infrared Processing and Analysis Center|accessdate=5 August 2017}} {{star-cluster-stub}}2. ^1 2 3 {{cite web|title=New General Catalog Objects: NGC 2250 - 2299|url=http://cseligman.com/text/atlas/ngc22a.htm#2277|website=cseligman.com|accessdate=5 August 2017}} 2 : Gemini (constellation)|NGC objects |
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