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NGC 2603 | |
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Observation data (J2000 epoch) | |
Constellation | Ursa Major |
Right ascension | 08h 34m 31.2217s [1] |
Declination | +52° 50′ 24.728″ [1] |
Redshift | 0.057074 |
Distance | 787 Mly (241 Mpc) |
Characteristics | |
Size | 81,000 ly |
Other designations | |
PGC 3133653, SDSS J083431.19+525024.8 |
NGC 2603 is a small compact spiral galaxy located 787 million light-years away in the constellation of Ursa Major from the Solar System. [2] [3] It was discovered by George Johnstone Stoney, an Irish astronomer, on February 9th, 1850. [4] NGC 2603 has an estimated diameter of 81,000 light-years. It contains a narrow-line active galactic nucleus. [1] The Hyperleda database associates NGC 2603 and NGC 2606 as one single galaxy. [5] NASA/IPAC database on the other hand, classifies NGC 2603 as galaxy PGC 3133653. [1]
Messier 109 is a barred spiral galaxy exhibiting a weak inner ring structure around the central bar approximately 67.2 ± 23 million light-years away in the northern constellation Ursa Major. M109 can be seen south-east of the star Phecda.
NGC 3953 is a barred spiral galaxy located in the constellation Ursa Major. It was discovered by Pierre Méchain on 12 March 1781. The galaxy is known to exhibit an inner ring structure that encircles the bar. NGC 3953 is a member of the M109 Group, a large group of galaxies located within the constellation Ursa Major that may contain over 50 galaxies.
NGC 5144 is an unbarred spiral galaxy located in the constellation of Ursa Minor. It has a velocity of 3,202 ± 9 km/s corresponding to a Hubble Distance of 47.2 ± 3.3 megaparsecs. It was discovered by William Herschel in May 1791.
NGC 2685 is a lenticular and polar ring Seyfert Type 2 galaxy in the constellation Ursa Major. It is about 50,000 light-years across and about 42 million light-years away from Earth. It is receding from Earth at 883 kilometers per second. It is an object of great scientific interest, because polar-ring galaxies are very rare galaxies. They are thought to form when two galaxies gravitationally interact with each other. "The bizarre configuration could be caused by the chance capture of material from another galaxy by a disk galaxy, with the captured debris strung out in a rotating ring. Still, observed properties of NGC 2685 suggest that the rotating ring structure is remarkably old and stable."
NGC 3718, also called Arp 214, is a galaxy located approximately 52 million light years from Earth in the constellation Ursa Major. It is either a lenticular or spiral galaxy.
NGC 7038 is an intermediate spiral galaxy located about 210 million light-years away in the constellation of Indus. Astronomer John Herschel discovered NGC 7038 on September 30, 1834.
NGC 4907 is a barred spiral galaxy located about 270 million light-years away in the constellation of Coma Berenices. It is also classified as a LINER galaxy. NGC 4907 was discovered by astronomer Heinrich d'Arrest on May 5, 1864. The galaxy is a member of the Coma Cluster, located equidistant between NGC 4928 and NGC 4829.
NGC 684 is a spiral galaxy approximately 135 million light-years away from Earth in the constellation of Triangulum. It was discovered by William Herschel on October 26, 1786. Edward Swift, Lewis' son, found this galaxy again on 18 Jan 1890 while "searching for Swift's Comet." and it was reported as a new object in list IX-6.
NGC 3285 is a barred spiral galaxy located about 200 million light-years away in the constellation Hydra. The galaxy was discovered by astronomer John Herschel on March 24, 1835. NGC 3285 is a member of the Hydra Cluster.
NGC 3313 is a large barred spiral galaxy located about 55 megaparsecs away in the constellation Hydra. It was discovered by astronomer Ormond Stone in 1886 and is an outlying member of the Hydra Cluster.
NGC 3336 is a barred spiral galaxy located about 190 million light-years away in the constellation Hydra. It was discovered by astronomer John Herschel on March 24, 1835. NGC 3336 is a member of the Hydra Cluster.
NGC 1264 is a low-surface-brightness barred spiral galaxy located about 145 million light-years away in the constellation Perseus. The galaxy was discovered by astronomer Guillaume Bigourdan on October 19, 1884. NGC 1264 is a member of the Perseus Cluster.
NGC 669 is an edge-on spiral galaxy with an active galactic nucleus located 200 million light-years away in the constellation Triangulum. NGC 669 was discovered by astronomer Édouard Stephan on November 28, 1883 and is a member of Abell 262.
NGC 688 is a barred spiral galaxy with starburst activity located 190 million light-years away in the constellation Triangulum. It was discovered by astronomer Heinrich d'Arrest on September 16, 1865 and is a member of the galaxy cluster Abell 262.
NGC 3928, also known as the Miniature Spiral, is a lenticular galaxy, sometimes classified as a dwarf spiral galaxy, in the constellation Ursa Major. It was discovered by William Herschel on March 9, 1788.
NGC 1351 is a lenticular galaxy in the constellation Fornax. It has a redshift of z=0.00505, and its distance from Earth can be estimated as 21 million parsecs. It is elongated in shape, and was discovered by William Herschel on October 19, 1835.
NGC 2606 is a spiral galaxy in the Ursa Major constellation. It lies 648 million light-years away from our home galaxy, the Milky Way. The galaxy was first discovered by John Herschel, a British astronomer on 16th February 1831. According to SIMBAD database, it is classified as a LINER galaxy and a Seyfert type 2 galaxy by Hyperleda.
NGC 2688 is a spiral galaxy located in Ursa Major. It is located 758 million light-years away from the Solar System and is moving away at a speed of 15,190 km/s. NGC 2688 was found by R.J. Mitchell who was an Irish astronomer and assistant to William Parsons. When Mitchell first saw the object, he commented it as very small and faint. According to Professor Seligman, the galaxy is classified as a lenticular galaxy rather than a spiral galaxy.
IC 2628 is a type SBa barred spiral galaxy with a ring located in Leo constellation. It is located 600 million light-years from the Solar System and has an approximate diameter of 135,000 light-years. IC 2628 was discovered on March 27, 1906, by Max Wolf and is classified as a ring galaxy due to its peculiar appearance. The galaxy has a surface brightness of magnitude 23.8 and located at right ascension (11:11:37.8) and declination (+12:07:21) respectively.
NGC 3950 is an elliptical galaxy of type E, in Ursa Major. Its redshift is 0.074602, meaning NGC 3950 is 1.03 billion light-years or 316 Mpc from Earth, which is within the Hubble distance values. This high redshift makes NGC 3950 one of the furthest New General Catalogue objects.