| 词条 | NGC 90 |
| 释义 |
| name = NGC 90 | image = N90s.jpg | image_size = 250px | caption = NGC 90 (top center) and its spiral companion to the right, NGC 93 | credit = Mount Lemmon SkyCenter using the 0.8m Schulman Telescope | epoch = J2000 | constellation name = Andromeda | ra = {{RA|00|21|51.4}} [1] | dec = {{DEC|+22|24|00}}[1] | z = 0.017856[2] | h_radial_v = {{nowrap|5353 ± 10 km/s}}[2] | dist_ly = 333.8 ± 146 Mly {{nowrap|(102.35 ± 44.76 Mpc)}}[2] | type = SAB(s)c pec [2] | appmag_v = 13.7 [7] | size_v = 2.4' x 0.91' [2] | notes = | names = UGC 208, MCG+04-02-011, PGC 1405[2], Arp 65 }} NGC 90 is an interacting spiral galaxy estimated to be about 300 million light-years away in the constellation of Andromeda. It was discovered by R. J. Mitchell in 1854 and its apparent magnitude is 13.7.[3] The galaxy is currently interacting with NGC 93 and exhibits two highly elongated and distorted spiral arms with bright blue star clusters indicative of star formation, likely caused by the interaction with its neighbor. NGC 90 and NGC 93 form the interacting galaxy pair Arp 65. References{{Commons|Arp 65}}1. ^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 | last1= Skrutskie | first1=M. | journal=The Astronomical Journal | volume=131 | issue=2 | pages=1163–1183 | year=2006 | doi=10.1086/498708 | bibcode = 2006AJ....131.1163S }} {{Ngc5}}{{Catalogs | NGC = 90 | PGC = 1405}}2. ^1 2 3 4 5 {{cite web |url=http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+90&extend=no&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=NED results for object NGC 0090 |accessdate=24 November 2008 |publisher=National Aeronautics and Space Administration / Infrared Processing and Analysis Center |date=2008 }} 3. ^1 {{Cite web|url=http://cseligman.com/text/atlas/ngc0a.htm#90|title = NGC Objects: NGC 50 - 99|date = |accessdate = |website = |publisher = |last = |first = }} 4 : NGC objects|Andromeda (constellation)|Astronomical objects discovered in 1854|Arp objects |
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