NGC 2227 | |
---|---|
Observation data (J2000 epoch) | |
Constellation | Canis Major |
Right ascension | 06h 25m 57.973s [1] |
Declination | −22° 00′ 17.41″ [1] |
Redshift | 0.007636 [2] |
Helio radial velocity | 2280.6 km/s [2] |
Distance | 98.04 ± 0.65 Mly (30.06 ± 0.20 Mpc) [3] |
Apparent magnitude (V) | 12.15 [4] |
Apparent magnitude (B) | 12.86 [4] |
Characteristics | |
Type | SB(rs)c [5] |
Other designations | |
MCG -04-16-004, PGC 19030 [2] |
NGC 2227 is a barred spiral galaxy with a morphological type of SB(rs)c [5] located in the direction of the Canis Major constellation. It was discovered on January 27, 1835, by John Herschel. [6]
In 1986, a type Ia supernova with an apparent magnitude of 14.0 was detected within NGC 2227, and was designated SN 1986O. [7]
NGC 2715 is an intermediate spiral galaxy in the constellation Camelopardalis. It was discovered in 1871 by Alphonse Borrelly. It is an intermediate spiral galaxy that is 4.9 arcminutes wide.
NGC 4605 is a dwarf barred spiral galaxy in the constellation Ursa Major, located at a distance of 18.1 ± 0.3 megalight-years from the Milky Way. Physically it is similar in size and in B-band absolute magnitude to the Large Magellanic Cloud. It is a member of the M81 Galaxy Group, along with Messier 81 and Messier 101.
NGC 3632 and NGC 3626 is an unbarred lenticular galaxy and Caldwell object in the constellation Leo. It was discovered by William Herschel, on 14 March 1784. It shines at magnitude +10.6/+10.9. Its celestial coordinates are RA 11h 20.1m, dec +18° 21′. It is located near the naked-eye-class A4 star Zosma, as well as galaxies NGC 3608, NGC 3607, NGC 3659, NGC 3686, NGC 3684, NGC 3691, NGC 3681, and NGC 3655. Its dimensions are 2′.7 × 1′.9. The galaxy belongs to the NGC 3607 group some 70 million light-years distant, itself one of the many Leo II groups.
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 4666 is a spiral galaxy in the equatorial constellation of Virgo, located at a distance of approximately 55 megalight-years from the Milky Way. It was discovered by the German-born astronomer William Herschel on February 22, 1784. 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. John L. E. Dreyer described it as "bright, very large, much extended 45°±, pretty suddenly brighter middle". It is a member of an interacting system with NGC 4668 and a dwarf galaxy, and belongs to a small group that also includes NGC 4632.
NGC 3258 is an elliptical galaxy in the constellation Antlia. It is a member of the Antlia Cluster, which lies about 40.7 megaparsecs away. It was discovered on May 2, 1834 by John Herschel.
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 100 is a galaxy located approximately 60 million light-years from the Solar System in the constellation Pisces. It has an apparent magnitude of 13.2. It was first discovered on 10 November 1885 by American astronomer Lewis Swift.
NGC 79 is an elliptical galaxy estimated to be about 270 million light-years away in the constellation of Andromeda. NGC 79 is its New General Catalogue designation. Its apparent magnitude is 14.9. It was discovered on 14 November 1884 by Guillaume Bigourdan.
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 5470 is an edge-on spiral galaxy located between 43 and 68 million light-years away in the constellation Virgo. It was discovered by astronomer John Herschel in 1830. It is a member of the Virgo III Groups, a series of galaxies and galaxy clusters strung out to the east of the Virgo Supercluster of galaxies.
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 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 2865 is an isolated elliptical galaxy in the equatorial constellation of Hydra. The core region of the galaxy shows a kinematically distinct component showing indications of a recent accretion or merger event that led to a burst of star formation around the nucleus. Observational constraints require this to have occurred within the last 100–400 million years, with the merger most likely being an Sb or Sc-class spiral galaxy.
NGC 941 is an intermediate spiral galaxy in the constellation Triangulum. It is an estimated 55 million light-years from the Milky Way and has a diameter of approximately 55,000 light years. The galaxies NGC 926, NGC 934, NGC 936, NGC 955 are located in the same sky area. NGC 941 was discovered by the astronomer William Herschel using on 6 January 1785.
NGC 3005 is an edge-on spiral galaxy in the constellation of Ursa Major, discovered by Bindon Stoney on January 25, 1851. It is a member of the NGC 2998 group, which also includes NGC 2998, NGC 3002, NGC 3006, NGC 3008, and a few others.
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 546 is a barred spiral galaxy about 270 million light years away from Earth and located in the constellation Sculptor. The largest diameter is 1.40 and the smallest is 0.5 angular minutes. The first discovery was made by John Frederick William Herschel on 23 October 1835.
NGC 3254 is a spiral galaxy in the constellation Leo Minor. It was discovered on March 13, 1785 by the astronomer William Herschel. It is a member of the NGC 3254 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.
NGC 7503 is an elliptical galaxy in the constellation Pisces. It was discovered by the astronomer Albert Marth on September 2, 1864. It is the brightest galaxy in its cluster.