| 词条 | NGC 252 |
| 释义 |
| name = NGC 252 | image = NGC 252.png | image_size = 250px | caption = NGC 252 (center), taken by the PROMPT 2 Telescope at the Cerro Tololo Inter-American Observatory | epoch = J2000 | constellation name = Andromeda | ra = {{RA|00|48|01.484}}[1] | dec = {{DEC|+27|37|25.76}}[1] | z = 0.016471[2] | h_radial_v = 4938[2] | dist_ly = {{convert|75.283|+/-|9.677|Mpc|Mly|abbr=on|lk=on|order=flip}}[2] | group_cluster = | type = (R)SA0+(r)[2] | size = {{convert|37.23|kpc|kly|abbr=on|lk=on|order=flip}}[2] | appmag_v = 13.4 | appmag_b = 12.49 | absmag_v = | size_v = 1.7′ × 1.309′[2] | notes = | names = UGC 491, MGC+04-03-004, PGC 2819[3] }}NGC 252 is a lenticular galaxy located in the constellation Andromeda. It was discovered by William Herschel in 1786.[4] See also
References1. ^1 {{cite journal|title=The Two Micron All Sky Survey (2MASS)|url=http://adsabs.harvard.edu/cgi-bin/nph-bib_query?db_key=AST&bibcode=2006AJ....131.1163S|author1=Skrutskie, M.|journal=The Astronomical Journal|volume=131|issue=2|pages=1163–1183|year=2006|doi=10.1086/498708|bibcode = 2006AJ....131.1163S}} {{Catalogs | NGC = 252}}{{galaxy-stub}}2. ^1 2 3 4 5 {{cite web|title=NASA/IPAC Extragalactic Database|work=Results for NGC 252|url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+252&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|accessdate=12 February 2017}} 3. ^{{cite simbad|title=NGC 252|access-date=12 February 2017}} 4. ^{{cite web|title= NGC 252 (= PGC 2819)|url=http://cseligman.com/text/atlas/ngc2a.htm#252|website=cseligman|accessdate=12 February 2017}} 4 : Andromeda (constellation)|Lenticular galaxies|Astronomical objects discovered in 1786|NGC objects |
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