| 词条 | NGC 4630 |
| 释义 |
| name = NGC 4630 | image = NGC 4630 SDSS.jpg | image_size = 250px | caption = SDSS image of NGC 4630. | epoch = J2000 | type = IB(s)m[1] | ra = {{RA|12|42|31.1}}[1] | dec = {{DEC|03|57|37}}[1] | dist_ly = 53,823,000 ly | group_cluster = Virgo II Groups | z = 0.002458/737 km/s[1] | appmag_v = 13.15[1] | size_v = 1.8 x 1.3[1] | constellation name = Virgo | names = PGC 42688, UGC 7871, VCC 1923[1] |size=~29,292.76 ly (estimated)}}NGC 4630 is an irregular galaxy[8] located about 54 million light-years away[2] in the constellation of Virgo.[3] NGC 4630 was discovered by astronomer William Herschel on February 2, 1786.[4] NGC 4630 is part of the Virgo II Groups[5] which form a southern extension of the Virgo Cluster.[6] See also
External links{{WikiSky}}References1. ^1 2 3 4 5 6 {{cite web | title=NASA/IPAC Extragalactic Database | work=Results for NGC 4630 | url=http://nedwww.ipac.caltech.edu/ | accessdate=2017-09-10}} {{Ngc50}}2. ^{{Cite web|url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+4630&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&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=Your NED Search Results|website=ned.ipac.caltech.edu|access-date=2017-09-12}} 3. ^{{Cite web|url=https://dso-browser.com/deep-sky/5693/ngc-4630/galaxy|title=Galaxy NGC 4630 - Galaxy in Virgo Constellation · Deep Sky Objects Browser|last=Rojas|first=Sebastián García|website=DSO Browser|language=en|access-date=2017-09-12}} 4. ^1 {{Cite web|url=http://cseligman.com/text/atlas/ngc46.htm#4630|title=New General Catalog Objects: NGC 4600 - 4649|last=|first=|date=|website=cseligman.com|language=en-US|archive-url=|archive-date=|dead-url=|access-date=2017-09-03}} 5. ^{{Cite journal|last=Tully|first=R. B.|date=June 1982|title=The Local Supercluster|bibcode=1982ApJ...257..389T|journal=The Astrophysical Journal|language=en|volume=257|pages=389–422|doi=10.1086/159999|issn=0004-637X}} 6. ^{{Cite web|url=http://www.atlasoftheuniverse.com/galgrps/virii.html|title=The Virgo II Groups|website=www.atlasoftheuniverse.com|access-date=2018-04-02}} 6 : Irregular galaxies|Virgo (constellation)|NGC objects|Principal Galaxies Catalogue objects|UGC objects|Astronomical objects discovered in 1786 |
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