NGC 252 | |
---|---|
Observation data (J2000 epoch) | |
Constellation | Andromeda |
Right ascension | 00h 48m 01.484s [1] |
Declination | +27° 37′ 25.76″ [1] |
Redshift | 0.016471 [2] |
Helio radial velocity | 4938 [2] |
Distance | 245.54 ± 31.56 Mly (75.283 ± 9.677 Mpc) [2] |
Apparent magnitude (V) | 13.4 |
Apparent magnitude (B) | 12.49 |
Characteristics | |
Type | (R)SA0+(r) [2] |
Size | 121.4 kly (37.23 kpc) [2] |
Apparent size (V) | 1.7′ × 1.309′ [2] |
Other designations | |
UGC 491, MGC+04-03-004, PGC 2819 [3] |
NGC 252 is a lenticular galaxy located in the constellation Andromeda. It was discovered by William Herschel in 1786. [4]
One supernova has been observed in NGC 252: SN 1998de (type Ia, mag. 18.4). [5]
NGC 4051 is an intermediate spiral galaxy in the constellation of Ursa Major. It was discovered on 6 February 1788 by John Herschel.
NGC 352 is a barred spiral galaxy in the constellation Cetus. It was discovered on September 20, 1784 by William Herschel. It was described as "pretty faint, small, irregularly extended" by John Louis Emil Dreyer, the compiler of the New General Catalogue; he also noted an "8th magnitude star 97 seconds of time to east" relative to the galaxy.
NGC 6850 is a barred lenticular galaxy in the constellation Telescopium, discovered by John Herschel in 1836.
NGC 4217 is an edge-on spiral galaxy which lies approximately 60 million light-years away in the constellation of Canes Venatici. It is a possible companion galaxy to Messier 106.
NGC 157 is an intermediate spiral galaxy in the constellation of Cetus. The compiler of the New General Catalogue, John Louis Emil Dreyer noted that NGC 157 was "pretty bright, large, extended, between 2 considerably bright stars". It was discovered on December 13, 1783 by William Herschel.
NGC 124 is a spiral galaxy in the constellation Cetus. It was discovered by Truman Henry Safford on 23 September 1867. The galaxy was described as "very faint, large, diffuse, 2 faint stars to northwest" by John Louis Emil Dreyer, the compiler of the New General Catalogue.
NGC 150 is a barred spiral galaxy in the constellation Sculptor. It is about 70 million light years away from the Solar System, and it has a diameter of about 55,000 light years. It was discovered on 20 November 1886, by Lewis A. Swift. The Type II supernova SN 1990K was detected in NGC 150, and was reported to be similar to SN 1987A.
NGC 251 is a spiral galaxy in the constellation of Pisces. It was discovered on October 15, 1784, by Frederick William Herschel.
NGC 3610 is an elliptical galaxy in the constellation Ursa Major. It was discovered on 8 April 1793 by William Herschel.
NGC 5002 is a Magellanic spiral galaxy in Canes Venatici. It was discovered by Heinrich d'Arrest in 1865. It is also known as MCG 6-29-51, PGC 45728, UGC 8254.
NGC 1573 is an elliptical galaxy in the constellation of Camelopardalis. It was discovered on 1 August 1883 by Wilhelm Tempel. It was described as "very faint, small" by John Louis Emil Dreyer, the compiler of the New General Catalogue. It is located about 190 million light-years away.
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 3697 is a spiral galaxy in the constellation of Leo. It was discovered on 24 February 1827 by John Herschel. It was described as "extremely faint, very small, extended 90°" by John Louis Emil Dreyer, the compiler of the New General Catalogue. It is a member of HCG 53, a compact group of galaxies.
NGC 6975, also known as NGC 6976, is a spiral galaxy in the constellation Aquarius. The object was discovered on 12 July 1864 by the German astronomer Albert Marth.
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 813 is a lenticular galaxy in the constellation Hydrus. It is estimated to be 390 million light-years from the Milky Way and has a diameter of approximately 140,000 ly. NGC 813 was discovered on November 24, 1834 by the British astronomer John Herschel.
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 706 is a spiral galaxy located in the Pisces constellation about 230 million light years from the Milky Way. It was discovered by the German–British astronomer William Herschel in 1786.
NGC 644 is a barred spiral galaxy in the constellation Phoenix in the southern sky. It is estimated to be 270 million light-years from the Milky Way and has a diameter of approximately 130,000 light-years. Together with NGC 641, it probably forms a gravitationally bound pair of galaxies. The object was discovered on September 5, 1834 by John Herschel.
NGC 3613 is an elliptical galaxy in the constellation Ursa Major. It was discovered by the astronomer William Herschel on April 8, 1793. NGC 3613 is the center of a cluster of galaxies, and has an estimated globular cluster population of over 2,000.