~19 Mly (Light Travel-Time redshift-based)[1] 30 to 64 Mly (measured)[1]
Apparent magnitude (V)
10.35[1]
Absolute magnitude (V)
−21.2[2]
Characteristics
Type
SB0[1]
Apparent size (V)
8.7' x 3.0'[1]
Other designations
UGC 2154, PGC 10123, MCG+06-06-073, Arp 135
NGC 1023, also known as the Perseus Lenticular Galaxy,[3] 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 (4.4±0.5)×107M☉.[4] The black hole was discovered by analyzing the dynamics of the galaxy.[5]
NGC 1023 is included in Halton Arp's Atlas of Peculiar Galaxies, under the category "Galaxies with Nearby Fragments" under the number 135.[6]
NGC 1023 has been estimated to have about 490 globular clusters, consistent with similar early-type galaxies.[2] A number of small galaxies have been found around NGC 1023, the collection of which is labelled the "NGC 1023 Group."[7] NGC 1023 has a satellite galaxy named NGC 1023A, which is a Magellanic spiral galaxy; its globular cluster system is much smaller, estimated to be around six individuals.[2]
^ abcdefghij"NASA/IPAC Extragalactic Database". Results for NGC 1023. Retrieved 2012-10-17.
^ abcYoung, Michael D.; Dowell, Jessica L.; Rhode, Katherine L. (2012). "Globular Cluster Systems of Spiral and S0 Galaxies: Results from WIYN Imaging of NGC 1023, NGC 1055, NGC 7332, and NGC 7339". The Astronomical Journal. 144 (4): 103. arXiv:1210.4476. Bibcode:2012AJ....144..103Y. doi:10.1088/0004-6256/144/4/103. S2CID 62792507.
^Stoyan, Ronald; Schurig, Stephan (2014). interstellarum Deep Sky Atlas. Erlangen: Cambridge University Press; Oculum-Verlag GmbH. ISBN 978-1-107-50338-0. OCLC 920437579.
^Graham, Alister W. (November 2008), "Populating the Galaxy Velocity Dispersion - Supermassive Black Hole Mass Diagram: A Catalogue of (Mbh, σ) Values", Publications of the Astronomical Society of Australia, 25 (4): 167–175, arXiv:0807.2549, Bibcode:2008PASA...25..167G, doi:10.1071/AS08013, S2CID 89905.
^Bower, G. A.; Green, R. F.; Bender, R.; Gebhardt, K.; Lauer, T. R.; Magorrian, J.; Richstone, D. O.; Danks, A.; Gull, T.; Hutchings, J.; Joseph, C. (2001-03-20). "Evidence of a Supermassive Black Hole in the Galaxy NGC 1023 from the Nuclear Stellar Dynamics". The Astrophysical Journal. 550 (1): 75–86. arXiv:astro-ph/0011204. Bibcode:2001ApJ...550...75B. doi:10.1086/319730. ISSN 0004-637X. S2CID 118949563.
^Arp, Halton (1966). Atlas of Peculiar Galaxies. Pasadena, California: California Institute of Technology. Retrieved 5 Jan 2010. (webpage includes PDF link)
^Tully, R. B. (1980). "Nearby groups of galaxies. I. The NGC 1023 group". Astrophysical Journal. 237: 390–403. Bibcode:1980ApJ...237..390T. doi:10.1086/157881.
NGC1023, also known as the Perseus Lenticular Galaxy, is a barred lenticular galaxy, a member of the NGC1023 group of galaxies in the Local Supercluster...
by William Herschel on October 6, 1784. The galaxy is a member of the NGC1023 group of galaxies in the Local Supercluster. It has an H II nucleus. The...
The NGC1023 Group is a group of galaxies about 20.6 million light-years (6.3 Mpc) away from Earth. It is a group in the Local Supercluster, along with...
angle of 102°. The NGC 925 is a member of the NGC1023 Group, a nearby, gravitationally-bound group of galaxies associated with NGC1023. However, the nearest...
NGC 1058 is a Seyfert Type 2 galaxy in the NGC1023 Group, located in the Perseus constellation. It is approximately 27.4 million light years from Earth...
mottled but not resolved". It is a member of the NGC1023 group of galaxies. The morphological class of NGC 1003 is SAcd, which means it is an unbarred spiral...
501 NGC 821 NGC1023NGC 1097 NGC 1271 NGC 1277 NGC 1332 NGC 1566 NGC 2787 NGC 3079 NGC 3115 NGC 3377 NGC 3384 NGC 3998 NGC 4151 NGC 4261 NGC 4438 NGC 4459...
fuzzies which so far have only been found in lenticular galaxies like NGC1023 and NGC 3384. They are characterized by their large size compared to globular...
galaxies, including M51 (Arp 85), Arp 220, and the Antennae Galaxies (NGC 4038/NGC 4039, or Arp 244). A few of the galaxies are simply dwarf galaxies that...
with a heliocentric radial velocity of 596 km/s. It is a member of the NGC1023 Group of galaxies. The morphological class of this galaxy is Sdm:, indicating...
doi:10.1023/A:1001511603093. S2CID 189822123. Kastner, Joel H.; et al. (April 2001). "Discovery of Extended X-Ray Emission from the Planetary Nebula NGC 7027...
(Rowan-Robinson 1985); Malin 2 (McGaugh and Bothun 1994); NGC 1275 and NGC 7252 (where D = v0/75.0 Mpc); and NGC 4676, 3C 273, A1795#1, Arp 220, Cygnus A (where...
The Whirlpool Galaxy, also known as Messier 51a (M51a) or NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus...
II Program. The catalogue contains 400 objects. All objects are from the NGC. All objects are visible in mid northern latitudes, since they were all observed...
2012. Tully, R. B. (April 1980). "Nearby groups of galaxies. I - The NGC1023 group" (PDF). Astrophysical Journal. Part 1. 237 (Apr. 15, 1980): 390–403...
right/bottom): NGC 7541, NGC 3021, NGC 5643, NGC 3254, NGC 3147, NGC 105, NGC 2608, NGC 3583, NGC 3147, MRK 1337, NGC 5861, NGC 2525, NGC 1015, UGC 9391, NGC 691...
Astrophysics and Space Science. 269: 427–430. Bibcode:1999Ap&SS.269..427E. doi:10.1023/A:1017025820201. S2CID 189840251. D. Mihalas (1968). Galactic Astronomy....
arXiv:astro-ph/0009178. Bibcode:2001ApSSS.277..457E. doi:10.1023/A:1012798126831. S2CID 118887340. "NGC 4340 - SB(r)0+". The De Vaucouleurs Atlas of Galaxies...
NGC 1530 is a barred spiral galaxy in the northern constellation of Camelopardalis. It was discovered by German astronomer W. Tempel in 1876. Danish astronomer...
formation? NGC 720, NGC 821, NGC1023, NGC 1400, NGC 1407, NGC 2768, NGC 2974, NGC 3115, NGC 3377, NGC 3608, NGC 4111, NGC 4278, NGC 4365, NGC 4374, NGC 4459...
(September 1987), "Membership of cepheids and red giants in 8 open clusters : NGC 129, 6067, 6087, 6649, 6664, IC 4725, LY 6, RU 79", Astronomy and Astrophysics...
black holes up to 21 billion (2.1 × 1010) M☉ have been detected, such as NGC 4889.) Unlike stellar mass black holes, supermassive black holes have comparatively...
supernovae have been observed in the galaxy, and NGC 5962 has two satellite galaxies. Slightly fainter is NGC 5921, a barred spiral galaxy with a LINER-type...
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