NGC 89

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NGC 89
Robert's quartet.jpg
NGC 89 (bottom) surrounded by the other galaxies in Robert's Quartet
Observation data (J2000 epoch)
Constellation Phoenix
Right ascension 00h 21m 24.355s [1]
Declination −48° 39 55.28 [1]
Redshift 0.011074 ± 0.000067 [2]
Distance 144 ± 10  Mly (44.1 ± 3.1  Mpc) [3]
Apparent magnitude  (V)14.18 [3]
Characteristics
Type SB0/a pec [4]
Apparent size  (V)0′.957 × 0′.459 [1]
Other designations
PGC 1374, ESO 194-G011

NGC 89 is a barred spiral or lenticular galaxy, part of Robert's Quartet, a group of four interacting galaxies.

This member has a Seyfert 2 nucleus with extra-planar features emitting H-alpha radiation. There are filamentary features on each side of the disk, including a jet-like structure extending about 4 kpc in the NE direction. It may have lost its neutral hydrogen (H1) gas due to interactions with the other members of the clusters—most likely NGC 92. [4]

Related Research Articles

<span class="mw-page-title-main">NGC 1705</span> Peculiar lenticular galaxy in the constellation Pictor

NGC 1705 is a peculiar lenticular galaxy and a blue compact dwarf galaxy (BCD) in the southern constellation of Pictor, positioned less than a degree to the east of Iota Pictoris, and is undergoing a starburst. With an apparent visual magnitude of 12.6 it requires a telescope to observe. It is estimated to be approximately 17 million light-years from the Earth, and is a member of the Dorado Group.

<span class="mw-page-title-main">NGC 3054</span> Intermediate spiral galaxy in the constellation Hydra

NGC 3054 is an intermediate spiral galaxy in the constellation Hydra. It was discovered by Christian Heinrich Friedrich Peters in 1859. It is probably in the same galaxy group as NGC 2935.

<span class="mw-page-title-main">NGC 4536</span> Intermediate spiral galaxy in the constellation Virgo

NGC 4536 is an intermediate spiral galaxy in the constellation Virgo located about 10° south of the midpoint of the Virgo cluster. However, it is not considered a member of the cluster. Rather, it is a member of the M61 Group of galaxies, which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster. The morphological classification in the De Vaucouleurs system is SAB(rs)bc, which indicates it is a weakly barred spiral galaxy with a hint of an inner ring structure plus moderate to loosely wound arms. It does not have a classical bulge around the nucleus.

<span class="mw-page-title-main">NGC 4710</span> Spiral galaxy in the constellation Coma Berenices

NGC 4710 is an edge-on spiral galaxy in the constellation Coma Berenices. Its prominent x-shaped structure reveals the existence of an underlying bar. NGC 4710 possesses both thin and thick discs.

<span class="mw-page-title-main">NGC 5247</span> Unbarred spiral galaxy in the constellation Virgo

NGC 5247 is a face-on unbarred spiral galaxy located some 60 million light years away in the constellation Virgo. It is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster. This is a grand design spiral galaxy that displays no indications of distortion caused by interaction with other galaxies. It has two spiral arms that bifurcate after wrapping halfway around the nucleus. The disk is estimated to be 4.9 ± 2.0 kly (1.5 ± 0.6 kpc) in thickness and it is inclined by roughly 28° to the line of sight.

<span class="mw-page-title-main">NGC 5364</span> Grand design spiral galaxy in the constellation Virgo

NGC 5364 is a grand design spiral galaxy located 54.5 million light years away in the constellation Virgo. It is inclined to the line of sight from the Earth at an angle of 47° along a position angle of 25°. It is a member of the NGC 5364 Group of galaxies, itself one of the Virgo III Groups strung out to the east of the Virgo Supercluster of galaxies.

<span class="mw-page-title-main">NGC 3593</span> Lenticular galaxy in the constellation Leo

NGC 3593 is a lenticular galaxy located in the constellation Leo. It has a morphological classification of SA(s)0/a, which indicates it is a lenticular galaxy of the pure spiral type. Despite this, it has a large amount of hydrogen, both in its molecular and atomic (H) form. It is a starburst galaxy, which means it is forming new stars at a high rate. This is occurring in a band of gas surrounding the central nucleus. There is a single arm, which spirals outward from this ring. It is frequently but not consistently identified as a member of the Leo Triplet group.

<span class="mw-page-title-main">NGC 92</span> Interacting spiral galaxy in Roberts Quartet

NGC 92 is a highly warped interacting unbarred spiral galaxy in Robert's Quartet; it is interacting with three neighbouring galaxies NGC 87, NGC 88 and NGC 89.

<span class="mw-page-title-main">NGC 3169</span> Spiral galaxy in the constellation Sextans

NGC 3169 is a spiral galaxy about 75 million light years away in the constellation Sextans. It has the morphological classification SA(s)a pec, which indicates this is a pure, unbarred spiral galaxy with tightly-wound arms and peculiar features. There is an asymmetrical spiral arm and an extended halo around the galaxy. It is a member of the NGC 3166 Group of galaxies, which is a member of the Leo II Groups, a series of galaxies and galaxy clusters strung out from the right edge of the Virgo Supercluster.

<span class="mw-page-title-main">NGC 5753</span> Spiral galaxy in the constellation Boötes

NGC 5753 is a spiral galaxy in the constellation Boötes. This is a member of the Arp 297 interacting galaxies group of four: NGC 5752, NGC 5753, NGC 5754, NGC 5755.

<span class="mw-page-title-main">NGC 5545</span> Spiral galaxy in the constellation Boötes

NGC 5545 is a spiral galaxy in the northern constellation of Boötes. It is interacting with the barred spiral galaxy NGC 5544.

<span class="mw-page-title-main">NGC 5755</span> Spiral galaxy in the constellation Boötes

NGC 5755 is a barred spiral galaxy in the constellation Boötes, member of Arp 297 interacting galaxies group of four: NGC 5752, NGC 5753, NGC 5754, and NGC 5755.

<span class="mw-page-title-main">NGC 5752</span> Spiral galaxy in the constellation Boötes

NGC 5752 is a spiral galaxy in the constellation Boötes. It is a member of the Arp 297 interacting galaxies group which comprises four galaxies: NGC 5752, NGC 5753, NGC 5754, NGC 5755.

<span class="mw-page-title-main">NGC 23</span> Barred spiral galaxy in the constellation Pegasus

NGC 23 is a spiral galaxy located in the northern constellation of Pegasus, around 173.5 megalight-years distant from the Milky Way. It was discovered by William Herschel on 10 September 1784. In the Webb Society Deep-Sky Observer's Handbook, the visual appearance of NGC 23 is described as follows:

Bright, extended ellipse; a bright nuclear structure is noticeably elongated; two weak spiral enhancements emerge from opposite sides of the nucleus, one curving towards a bright star attached on the south end. The galaxy is likely interacting with NGC 9.

<span class="mw-page-title-main">NGC 24</span> Unbarred spiral galaxy in the constellation Sculptor

NGC 24 is a spiral galaxy in the southern constellation of Sculptor, about 23.8 megalight-years distant from the Milky Way. It was discovered by British astronomer William Herschel in 1785, and measures some 40,000 light-years across. The general shape of this galaxy is specified by its morphological classification of SA(s)c, which indicates it is an unbarred spiral with no ring-like structure and moderate to loosely-wound spiral arms. This galaxy is positioned in the vicinity of the Sculptor Group, but is actually a background object that is more than three times as distant. It may form a pair with another background galaxy, NGC 45.

<span class="mw-page-title-main">NGC 925</span> Barred spiral galaxy in the constellation Triangulum

NGC 925 Amatha Galaxy is a barred spiral galaxy located about 30 million light-years away in the constellation Triangulum. The morphological classification of this galaxy is SB(s)d, indicating that it has a bar structure and loosely wound spiral arms with no ring. The spiral arm to the south is stronger than the northern arm, with the latter appearing flocculent and less coherent. The bar is offset from the center of the galaxy and is the site of star formation all along its length. Both of these morphological traits—a dominant spiral arm and the offset bar—are typically characteristics of a Magellanic spiral galaxy. The galaxy is inclined at an angle of 55° to the line of sight along a position angle of 102°.

<span class="mw-page-title-main">NGC 2775</span> Flocculent unbarred spiral galaxy in the constellation Cancer

NGC 2775, also known as Caldwell 48, is a spiral galaxy in the constellation Cancer. It is 67 million light-years away from the Milky Way. It was discovered by William Herschel in 1783. NGC 2775 belongs to the Antlia-Hydra Cluster of galaxies and is the most prominent member of the NGC 2775 Group, a small galaxy group in the Virgo Supercluster, along with the Local Group. Other members of the NGC 2775 Group include NGC 2777 and UGC 4781.

<span class="mw-page-title-main">NGC 3281</span> Large unbarred spiral galaxy in the constellation Antlia

NGC 3281 is a large unbarred spiral galaxy in the southern constellation of Antlia, located at a distance of 144.7 megalight-years from the Milky Way. The galaxy is inclined by an angle of 64° to the line-of-sight from the Earth, with the major axis aligned with a position angle of 137°. It is a luminous infrared galaxy and a type II Seyfert galaxy. NGC 3281 is a member of the Antlia Cluster, which belongs to the Hydra–Centaurus Supercluster.

<span class="mw-page-title-main">NGC 1084</span> Unbarred spiral galaxy in the constellation Eridanus

NGC 1084 is an unbarred spiral galaxy in the constellation Eridanus. It is located at a distance of about 63 million light-years away from the Milky Way. The galaxy was discovered by William Herschel on 10 January 1785. It has multiple spiral arms, which are not well defined. It belongs in the same galaxy group with NGC 988, NGC 991, NGC 1022, NGC 1035, NGC 1042, NGC 1047, NGC 1052 and NGC 1110. This group is in turn associated with the Messier 77 group.

<span class="mw-page-title-main">NGC 531</span> Barred spiral galaxy in the constellation Andromeda

NGC 531 is a barred spiral galaxy in the constellation Andromeda with a visual magnitude of 10.51. It is a distance of 65.7 Mpc from the Sun. It is a member of the Hickson Compact Group HCG 10, and is interacting with the other members of the group.

References

  1. 1 2 3 Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN   0004-6256. S2CID   18913331.
  2. Boselli, A.; et al. (October 1996), "The molecular gas content of spiral galaxies in compact groups.", Astronomy and Astrophysics, 314: 738–744, Bibcode:1996A&A...314..738B.
  3. 1 2 "NED results for object NGC 0089". NASA/IPAC Extragalactic Database. Jet Propulsion Laboratory/California Institute of Technology. Retrieved 2015-10-06.
  4. 1 2 Presotto, V.; et al. (December 2009), "SCG0018-4854: A young and dynamic compact group", Astronomische Nachrichten, 330 (9–10): 988–990, arXiv: 0910.4978 , Bibcode:2009AN....330..988P, doi:10.1002/asna.200911275.