| 词条 | NGC 4497 |
| 释义 |
| name = NGC 4497 | image = SDSS NGC 4497.jpg | image_size = 250px | caption = SDSS image of NGC 4497. | epoch = J2000 | type = SAB0^+(s)[1] | ra = {{RA|12|31|32.5}}[1] | dec = {{DEC|11|37|29}}[1] | dist_ly = 61,288,000 ly[2] | group_cluster = Virgo Cluster | z = 0.003486/1045 km/s[1] | appmag_v = 13.3[1] | size_v = 1.99 x 0.96[1] | constellation name = Virgo | names = IC 3452, PGC 41457, UGC 7665, VCC 1368[1] |size=~29,274.8 ly (estimated)[1] }}NGC 4497 is a lenticular galaxy located about 60 million light-years away[3] in the constellation Virgo.[4] NGC 4497 was discovered by astronomer William Herschel on March 15, 1784. It was rediscovered by astronomer Arnold Schwassmann on November 8, 1900 and was listed as IC 3452.[5] NGC 4497 is a member of the Virgo Cluster.[6][7] See also
References1. ^1 2 3 4 5 6 7 {{cite web | title=NASA/IPAC Extragalactic Database | work=Results for NGC 4497 | url=http://nedwww.ipac.caltech.edu/ | accessdate=2017-10-31}} 2. ^{{cite web| title = parsecs to lightyears conversion| url = http://www.unitconversion.org/length/parsecs-to-light-years-conversion.html| accessdate = 2017-09-30}} 3. ^{{Cite web|url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+4497&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=2017-10-31}} 4. ^{{Cite web|url=https://dso-browser.com/deep-sky/5546/ngc-4497/galaxy|title=Galaxy NGC 4497 - Galaxy in Virgo Constellation · Deep Sky Objects Browser|last=Rojas|first=Sebastián García|website=DSO Browser|language=en|access-date=2017-10-31}} 5. ^{{Cite web|url=http://cseligman.com/text/atlas/ngc44a.htm#4497|title=New General Catalog Objects: NGC 4450 - 4499|last=|first=|date=|website=cseligman.com|language=en-US|archive-url=|archive-date=|dead-url=|access-date=2017-10-27}} 6. ^{{Cite web|url=http://www.atlasoftheuniverse.com/galgrps/vir.html|title=The Virgo Cluster|website=www.atlasoftheuniverse.com|access-date=2017-10-31}} 7. ^{{Cite web|url=http://ned.ipac.caltech.edu/cgi-bin/NEDatt?objname=NGC+4497|title=Detailed Object Classifications|website=ned.ipac.caltech.edu|access-date=2017-10-31}} External links{{WikiSky}}{{Ngc45}} 9 : Virgo (constellation)|Lenticular galaxies|NGC objects|IC objects|Principal Galaxies Catalogue objects|UGC objects|Astronomical objects discovered in 1784|Virgo Cluster|Discoveries by William Herschel |
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