词条 | NGC 6925 |
释义 |
| name = NGC 6925 | epoch = J2000 | pronounce = | constellation name = | ra = {{RA|20|34|20.566}}[1] | dec = {{DEC|-31|58|51.20}}[1] | z = 0.009317[1] | h_radial_v = 2780.1 km/s[1] | gal_v = | dist_ly = {{convert|30.543|+/-|4.162|Mpc|Mly|abbr=on|lk=on|order=flip}}[2] | group_cluster = | type = SA(s)bc[2] | mass = | mass_light_ratio = | stars = | appmag_v = 11.3[1] | appmag_b = 12.09[1] | absmag_v = | size_v = 3.100′ × 1.116′[1] | notes = | names = IC 5015, MCG-05-48-022, PGC 64980, IRAS 20312-3209[2] | references = }}NGC 6925 is an unbarred spiral galaxy in the constellation Microscopium of apparent magnitude 11.3. It is lens-shaped, as it lies almost edge on to observers on Earth. It lies 3.7 degrees west-northwest of Alpha Microscopii.[3] SN 2011ei, a Type II supernova in NGC 6925, was discovered by Stu Parker in New Zealand in July 2011.[4] References1. ^1 2 3 4 5 6 {{cite simbad|title=NGC 6925|accessdate=25 March 2015}} {{Catalogs | NGC = 6925}}{{Galaxy}}{{galaxy-stub}}2. ^1 2 {{cite web|url=http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+6925&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 6925|accessdate=13 February 2017|publisher=National Aeronautics and Space Administration / Infrared Processing and Analysis Center }} 3. ^{{cite book | first=Michael E. | last=Bakich | date=2010 | page=289 | title=1001 Celestial Wonders to See Before You Die: The Best Sky Objects for Star Gazers | series=Patrick Moore's Practical Astronomy Series | publisher=Springer | isbn=978-1-4419-1776-8|url=https://books.google.com/?id=qEhpS7d5ZdAC&pg=PA289&dq=NGC+6925#v=onepage&q=NGC%206925&f=false }} 4. ^{{cite web|title=Supernova 2011ei in NGC 6925|url=http://www.rochesterastronomy.org/sn2011/sn2011ei.html|website=Rochester Astronomy|accessdate=20 June 2015|archiveurl=https://www.webcitation.org/6ZQD70uDg|archivedate=20 June 2015}} 5 : NGC objects|IC objects|Principal Galaxies Catalogue objects|Unbarred spiral galaxies|Microscopium |
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