| 词条 | NGC 1023 |
| 释义 |
| name = NGC 1023 | image = NGC1023 JeffJohnson.jpg | image_size = 350px | caption = Barred lenticular galaxy NGC 1023 | other_names = NGC 1023 group | epoch = J2000 | constellation name = Perseus | ra = {{RA|02|40|24.0}}[1] | dec = {{DEC|+39|03|48}}[1] | z = 0.002125[1] | h_radial_v = {{nowrap|637 ± 4 km/s}}[1] | dist_ly = ~19 Mly (Light Travel-Time redshift-based)[1] 30 to 64 Mly (measured)[1] | type = SB0[1] | appmag_v = 10.35[1] | size_v = 8.7' x 3.0'[1] | names = UGC 2154, PGC 10123, MCG+06-06-073, Arp 135 }}NGC 1023 is a barred lenticular galaxy, a member of the NGC 1023 group of galaxies in the Local Supercluster. Distance measurements vary from 9.3 to 19.7 million parsecs (30 to 64 million light-years).[1] The supermassive black hole at the core has a mass of {{Val|4.4e7|0.5|ul=solar mass}}.[2] NGC 1023 is included in Halton Arp's Atlas of Peculiar Galaxies, under the category "Galaxies with Nearby Fragments" under the number 135.[3] References1. ^1 2 3 4 5 6 7 8 9 {{cite web |title=NASA/IPAC Extragalactic Database |work=Results for NGC 1023 |url=http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+1023&img_stamp=yes&extend=no |accessdate=2012-10-17}} {{Ngc15}}{{galaxy-stub}}2. ^{{citation | title=Populating the Galaxy Velocity Dispersion - Supermassive Black Hole Mass Diagram: A Catalogue of (Mbh, σ) Values | last1=Graham | first1=Alister W. | postscript=. | journal=Publications of the Astronomical Society of Australia | volume=25 | issue=4 | pages=167–175 | date=November 2008 | doi=10.1071/AS08013 | bibcode=2008PASA...25..167G |arxiv = 0807.2549 }} 3. ^{{cite book|last=Arp|first=Halton|title=Atlas of Peculiar Galaxies|publisher=California Institute of Technology|location=Pasadena, California|year=1966|url=http://nedwww.ipac.caltech.edu/level5/Arp/Arp_contents.html|accessdate=5 Jan 2010}} (webpage includes PDF link) 5 : NGC objects|UGC objects|Principal Galaxies Catalogue objects|Arp objects|NGC 1023 Group |
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