NGC 89

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

NGC 89 is a 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]

References

1 2 3 Skrutskie, M. F.; et al. (February 2006), "The Two Micron All Sky Survey (2MASS)", The Astronomical Journal 131 (2): 1163–1183, Bibcode:2006AJ....131.1163S, doi:10.1086/498708.
↑ 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.
1 2 "NED results for object NGC 0089". NASA/IPAC Extragalactic Database. Jet Propulsion Laboratory/California Institute of Technology. Retrieved 2015-10-06.
1 2 Presotto, V.; et al. (December 2009), "SCG0018-4854: A young and dynamic compact group", Astronomische Nachrichten 330: 988–990, Bibcode:2009AN....330..988P, doi:10.1002/asna.200911275.

External links

NGC 89

NGC 89 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

Wikimedia Commons has media related to NGC 89.

Robert's Quartet

Galaxies	NGC 87 NGC 88 NGC 89 NGC 92

Database references	Data Data Data Data

Astronomical catalogs

NGC	NGC 84 NGC 85 NGC 86 NGC 87 NGC 88 NGC 89 NGC 90 NGC 91 NGC 92 NGC 93 NGC 94

PGC	PGC 1370 PGC 1371 PGC 1372 PGC 1373 PGC 1374 PGC 1375 PGC 1376 PGC 1377 PGC 1378

Coordinates: 00^h 21^m 24.3^s, −48° 39′ 57″

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