Arp 272 | |
---|---|
Observation data (J2000 epoch) | |
Constellation | Hercules |
Right ascension | Left: 16h 05m 23.3s [1] Right: 16h 05m 22.2s [2] Top: 14h 35m 06.354s [3] |
Declination | Left: +17° 45′ 26″ [1] Right: +17° 45′ 15″ [2] Top: +17° 45′ 35″ [3] |
Redshift | Left: 0.031928 [1] Right: 0.037116 [2] Top: 0.034239 [3] |
Heliocentric radial velocity | Left: 9572 km/s [1] Right: 11127 km/s [2] Top: 10265 km/s [3] |
Distance | 494.13 ± 55.89 Mly (151.5 ± 17.137 Mpc) [1] |
Apparent magnitude (V) | Left: 15.2 [1] Right: 16.3 [2] Top: 17.2 [3] |
Characteristics | |
Type | Left: SA(s)c [1] Right: SB(rs)cd [2] |
Apparent size (V) | Left: 0.903' × 0.687' [4] Right: 0.62' × 0.43' [5] |
Notable features | Interacting galaxy triple |
Other designations | |
Left: NGC 6050, PGC 57058, UGC 10186, MCG+03-41-092, VV 220a Right: IC 1179, PGC 57053, MCG+03-41-093 Top: SDSSCGB 4240.3, SDSS J160522.48+174534.7 |
Arp 272 is a pair of interacting galaxies consisting of the two spiral galaxies NGC 6050 (left) and IC 1179 (right). Arp 272 lies around 450 million light years from Earth in the constellation of Hercules. [1] The galaxies are part of the Hercules Cluster, which is itself part of the CfA2 Great Wall. [6]
The two galaxies in Arp 272 are in physical contact through their spiral arms. A third galaxy can be seen at the top of them; that galaxy is also interacting with them. [3]
One supernova has been observed in IC 1179: SN 2006cd (type II-P, mag. 18.3). [7]
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 2207 and IC 2163 are a pair of colliding spiral galaxies about 80 million light-years away in the constellation Canis Major. Both galaxies were discovered by John Herschel in 1835.
NGC 383 is a double radio galaxy with a quasar-like appearance located in the constellation Pisces. It is listed in Halton C. Arp's 1966 "The Arp Atlas of Peculiar Galaxies." Recent discoveries by the National Radio Astronomy Observatory in 2006 reveal that NGC 383 is being bisected by high energy relativistic jets traveling at relatively high fractions of the speed of light. The relativistic electrons in the jets are detected as synchrotron radiation in the x-ray and radio wavelengths. The focus of this intense energy is the galactic center of NGC 383. The relativistic electron jets detected as synchrotron radiation extend for several thousand parsecs and then appear to dissipate at the ends in the form of streamers or filaments.
NGC 2608 is a barred spiral galaxy located 93 million light-years away in the constellation Cancer. It is 62,000 light-years across, and about 60% of the width of the Milky Way. It is considered a grand design spiral galaxy and is classified as SB(s)b, meaning that the galaxy's arms wind moderately around the prominent central bar.
NGC 935 and IC 1801 are a pair of interacting galaxies within the Aries constellation. They were discovered on 18 September 1885 by Lewis Swift. NGC 935 is the northern member of the pair, and IC 1801 is the southern. Together, they are listed in Halton Arp's Atlas of Peculiar Galaxies as Arp 276, as an example of interacting galaxies.
The NGC 5679 group, also known as Arp 274, is a triplet of galaxies, MCG+1-37-36, MCG+1-37-35 and MCG+1-37-34, spanning about 200000 light-years and at some 400 million light-years from Earth in the constellation Virgo. Arp 274 refers to the Atlas of Peculiar Galaxies, compiled by Halton Arp in 1966. Galaxies 269 through 274 in his catalogue are galaxies that appear to have connected arms.
NGC 296 is a low surface brightness unbarred spiral galaxy in the constellation of Pisces. The designation NGC 295 is sometimes mistakenly used for NGC 296.
NGC 5566 is a barred spiral galaxy in the constellation Virgo, which is approximately 66 million light years away from Earth. The galaxy is the biggest in the constellation Virgo, stretching nearly 150,000 light years in diameter. The galaxy NGC 5566 was discovered on 30 April 1786 by the German-British astronomer William Herschel. It is included in Halton Arp's Atlas of Peculiar Galaxies. It is a member of the NGC 5566 Group of galaxies, itself one of the Virgo III Groups strung out to the east of the Virgo Supercluster of galaxies.
NGC 6560 is a spiral galaxy located in the constellation Hercules. It was discovered by Lewis A. Swift on 22 October 1886.
NGC 6221 is a barred spiral galaxy located in the constellation Ara. In de Vaucouleurs' galaxy morphological classification scheme, it is classified as SB(s)bc and was discovered by British astronomer John Herschel on 3 May 1835. NGC 6221 is located at about 69 million light years from Earth.
NGC 259 is a spiral galaxy located in the constellation Cetus. It was discovered by William Herschel in 1786.
NGC 7035 and NGC 7035A are a pair of interacting lenticular galaxies located around 400 to 430 million light-years away in the constellation of Capricornus. The main galaxy, NGC 7035 was discovered by astronomer Frank Muller in 1886.
NGC 7603 is a spiral Seyfert galaxy in the constellation Pisces. It is listed in the Atlas of Peculiar Galaxies. It is interacting with the smaller elliptical galaxy PGC 71041 nearby.
NGC 191A is a lenticular galaxy in the constellation Cetus.
NGC 5395 is an interacting spiral galaxy located at a distance of 160 million light years, but receding away from the Earth at 3511 kilometers per second, in the constellation Canes Venatici. It was discovered by William Herschel on May 16, 1787. NGC 5395 and NGC 5394 are included in the Atlas of Peculiar Galaxies as Arp 84 in the category "Spiral galaxies with large high surface brightness companions".
NGC 2798 is a barred spiral galaxy in the constellation Lynx. NGC 2798 and NGC 2799 are listed under the Arp Catalogue as Arp 283 and noted as an "interacting galaxy pair". The galaxy is listed in the New General Catalogue.
NGC 5331 is a pair of two interacting spiral galaxies in the constellation Virgo. They were discovered by William Herschel on May 13, 1793.
NGC 3705 is a barred spiral galaxy in the constellation Leo. It was discovered by William Herschel on Jan 18, 1784. It 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 606 is a barred spiral galaxy located in the Pisces constellation about 470 million light-years from the Milky Way. It was discovered by the French astronomer Édouard Stephan in 1881.