NGC 5308 | |
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Observation data (J2000 epoch) | |
Constellation | Ursa Major |
Right ascension | 13h 47m 00.392s [1] |
Declination | +60° 58′ 22.94″ [1] |
Redshift | 0.006665 [2] |
Helio radial velocity | 1998 km/s [2] |
Distance | 95.48 ± 16.78 Mly (29.275 ± 5.144 Mpc) [2] |
Group or cluster | NGC 5322 group [3] |
Apparent magnitude (B) | 12.5 [4] |
Characteristics | |
Type | S0− [2] |
Size | 103,200 ly (31,640 pc) [2] |
Apparent size (V) | 3.7′ × 0.7′ [2] |
Other designations | |
UGC 8722, MGC+10-20-029, PGC 48860 [4] |
NGC 5308 is an edge-on lenticular galaxy in the constellation of Ursa Major. It was discovered on 19 March 1790 by William Herschel. [5] It was described by John Louis Emil Dreyer as "bright, pretty large" when he compiled the New General Catalogue. [6] A small, irregular galaxy near NGC 5308 has been given the designation LEDA 2802348. [7]
NGC 5308 was imaged by the Hubble Space Telescope in 2016. The galaxy appears to be a flat, smooth disk, typical of most lenticular galaxies. Many large globular clusters orbit the galaxy; these are visible as tiny dots surrounding the galaxy, and are mostly made of old, aging stars similar to the galaxy itself. [8]
SN 1996bk, a type Ia supernova, was discovered in NGC 5308 in October 1996. The supernova was 10.5" south and 17.9" west of center of the galaxy, and had an apparent visual magnitude of 15. [9]
Messier 100 is a grand design intermediate spiral galaxy in the southern part of the mildly northern Coma Berenices. It is one of the brightest and largest galaxies in the Virgo Cluster and is approximately 55 million light-years from our galaxy, its diameter being 107,000 light years, and being about 60% as large. It was discovered by Pierre Méchain in 1781 and 29 days later seen again and entered by Charles Messier in his catalogue "of nebulae and star clusters".. It was one of the first spiral galaxies to be discovered, and was listed as one of fourteen spiral nebulae by Lord William Parsons of Rosse in 1850. NGC 4323 and NGC 4328 are satellite galaxies of M100; the former is connected with it by a bridge of luminous matter.
NGC 5890 is an unbarred lenticular galaxy in the constellation Libra. It was discovered in April 1785 by Ormond Stone.
NGC 3550 is a lenticular galaxy in the constellation Ursa Major. It was discovered on April 11, 1785, by William Herschel. It is one of the brightest galaxies of the Abell 1185 galaxy cluster.
NGC 3552 is a lenticular galaxy in the constellation Ursa Major. It was discovered on April 11, 1785 by William Herschel. It is a member of the galaxy cluster Abell 1185.
NGC 7499 is an unbarred lenticular galaxy within the constellation Pisces. NGC 7499 is its New General Catalogue designation. It was discovered on September 2, 1864 by the astronomer Albert Marth.
NGC 4866 is an unbarred lenticular galaxy located roughly 100 million light-years away in the constellation Virgo. It was first observed by British astronomer Sir William Herschel on January 14, 1787. It is a member of the Virgo Cluster.
NGC 74 is a lenticular galaxy located in the Andromeda constellation. It was discovered on 7 October 1855 by Irish astronomer William Parsons.
NGC 1222 is an early-type lenticular galaxy located in the constellation of Eridanus. The galaxy was discovered on 5 December 1883 by the French astronomer Édouard Stephan. John Louis Emil Dreyer, the compiler of the New General Catalogue, described it as a "pretty faint, small, round nebula" and noted the presence of a "very faint star" superposed on the galaxy.
NGC 5264, also known as DDO 242, is an irregular galaxy in the constellation Hydra. It is part of the M83 subgroup of the Centaurus A/M83 Group, located some 15 million light years away. The galaxy was discovered on 30 March 1835 by John Herschel, and it was described as "very faint, pretty large, round, very little brighter middle" by John Louis Emil Dreyer, the compiler of the New General Catalogue.
NGC 1140 is an irregular galaxy in the southern constellation of Eridanus. Estimates made using the Tully–Fisher method put the galaxy at about 59 million light years. It was discovered on 22 November 1786 by William Herschel, and was described as "pretty bright, small, round, stellar" by John Louis Emil Dreyer, the compiler of the New General Catalogue.
NGC 5011 is an elliptical galaxy in the constellation of Centaurus. It was discovered on 3 June 1834 by John Herschel. It was described as "pretty bright, considerably small, round, among 4 stars" by John Louis Emil Dreyer, the compiler of the New General Catalogue.
NGC 5559 is a barred spiral galaxy, located 240 million light-years away in the constellation of Boötes. It was discovered on April 10, 1785 by the astronomer William Herschel.
NGC 515, also occasionally referred to as PGC 5201 or UGC 956, is a lenticular galaxy located approximately 228 million light-years from the Solar System in the constellation Pisces. It was discovered on 13 September 1784 by astronomer William Herschel.
NGC 517, also occasionally referred to as PGC 5214 or UGC 960, is a lenticular galaxy located approximately 188 million light-years from the Solar System in the constellation Pisces. It was discovered on 13 September 1784 by astronomer William Herschel.
NGC 525, also occasionally referred to as PGC 5232 or UGC 972 is a lenticular galaxy located approximately 95.6 million light-years from the Solar System in the constellation Pisces. It was discovered on 25 September 1862 by astronomer Heinrich d'Arrest.
NGC 527, also occasionally referred to as PGC 5128 or PGC 5141, is a lenticular galaxy located approximately 259 million light-years from the Solar System in the constellation Sculptor. It was discovered on 1 September 1834 by astronomer John Herschel.
NGC 2227 is a barred spiral galaxy with a morphological type of SB(rs)c located in the direction of the Canis Major constellation. It was discovered on January 27, 1835, by John Herschel.
NGC 980 is a lenticular galaxy located in the constellation Andromeda about 256 million light years from the Milky Way. It was discovered by the German - British astronomer William Herschel in 1786.
NGC 996 is an elliptical galaxy of the Hubble type E0 in the constellation Andromeda. It is estimated to be 210 million light years from the Milky Way and has a diameter of approximately 75,000 ly. The supernova SN 1996bq occurred in this galaxy. NGC 996 was discovered on December 7, 1871 by astronomer Édouard Stephan.
NGC 2328 is a low-luminosity, early-type (lenticular) galaxy. It is located in the Puppis constellation. NGC 2328 is its New General Catalogue designation. It is located about 59 million light-years away from the Sun.