| 词条 | NGC 4612 |
| 释义 |
| name = NGC 4612 | image = SDSS NGC 4612.jpg | image_size = 250px | caption = SDSS image of NGC 4612. | epoch = J2000 | type = (R)SAB0^0[1] | ra = {{RA|12|41|32.7}}[1] | dec = {{DEC|07|18|54}}[1] | dist_ly = 57,166,550 ly | group_cluster = Virgo Cluster | z = 0.005921/1775 km/s[1] | appmag_v = 12.3[1] | size_v = 2.17 x 1.38[1] | constellation name = Virgo | names = PGC 42574, UGC 7850, VCC 1883[1] |size=~40,840.24 ly (estimated)}}NGC 4612 is a barred lenticular galaxy located about 57 million light-years away[2] in the constellation of Virgo.[3] NGC 4612 was discovered by astronomer William Herschel on January 23, 1784.[4] The galaxy is a member of the Virgo Cluster.[5] Physical characteristicsNGC 4612 has diffuse bar embedded in a small, bright nucleus. Surrounding the nucleus, there is a very low-surface-brightness ring.[5] See also
External links{{WikiSky}}References1. ^1 2 3 4 5 6 {{cite web | title=NASA/IPAC Extragalactic Database | work=Results for NGC 4612 | 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+4612&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=2017-09-11}} 3. ^{{Cite web|url=https://dso-browser.com/deep-sky/5673/ngc-4612/galaxy|title=Galaxy NGC 4612 - Barred Lenticular Galaxy in Virgo Constellation · Deep Sky Objects Browser|last=Rojas|first=Sebastián García|website=DSO Browser|language=en|access-date=2017-09-11}} 4. ^{{Cite web|url=http://cseligman.com/text/atlas/ngc46.htm#4612|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. ^1 {{Cite web|url=http://ned.ipac.caltech.edu/cgi-bin/NEDatt?objname=NGC+4612|title=Detailed Object Classifications|website=ned.ipac.caltech.edu|access-date=2017-09-11}} 7 : Barred lenticular galaxies|Virgo (constellation)|NGC objects|Principal Galaxies Catalogue objects|UGC objects|Astronomical objects discovered in 1784|Virgo Cluster |
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