| 词条 | NGC 171 |
| 释义 |
| name = NGC 171 | image = NGC 0171 SDSS.jpg | upright = 1.35 | alt = NGC 171 | caption = NGC 171 as seen on SDSS | epoch = J2000 | ra = {{RA|00|37|21.5}}[1] | dec = {{DEC|-19|56|03}}[1] | constellation name = Cetus | z = 0.013043[1] | dist_ly = | type = SBb[1][2] | appmag_v = 12.90[1] | size_v = 2.1' × 1.9'[1] | notes = | names = ESO 540- G 006, MCG -03-02-024, 2MASX J00372152-1956032, 2MASXi J0037129-195609, IRAS 00348-2012, IRAS F00348-2012, ESO-LV 5400060, 6dF J0037125-195603, PGC 2232.[1] }} NGC 171 is a barred spiral galaxy with an apparent magnitude of 12, located around 3 million light-years away in the constellation Cetus. The galaxy has 2 main medium-wound arms, with a few minor arms, and a fairly bright nucleus and bulge. It was discovered on 20 October 1784 by William Herschel.[3] It is also known as NGC 175.{{cn|date=October 2018}} See also
References1. ^1 2 3 4 5 6 {{cite web | title=NASA/IPAC Extragalactic Database | work=Results for NGC 0171 | url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+171&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=2016-09-02}} 2. ^{{cite simbad|title=NGC 171|accessdate=2016-12-31}} 3. ^{{Cite web|url=http://cseligman.com/text/atlas/ngc1a.htm#171|title=New General Catalog Objects: NGC 150 - 199|website=cseligman.com|language=en-US|access-date=2018-02-08}} External links
5 : NGC objects|Barred spiral galaxies|Cetus (constellation)|Astronomical objects discovered in 1784|Discoveries by William Herschel |
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