Arp 271

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Arp 271
Arp 271.tif
NGC 5426 (bottom left) and NGC 5427 (top right)
Observation data (J2000 epoch)
Constellation Virgo
Right ascension 14h 03m 25.5s [1]
Declination −06° 02′ 59″ [1]
Distance 127 million light-years (39 Mpc)
Apparent magnitude  (V)11.4 [2]
Characteristics
Type SA(s)c pec [3] (NGC 5246)
SA(s)c pec [4] (NGC 5247)
Apparent size  (V)2.5 [2]
Other designations
NGC 5426 & NGC 5427, LEDA 50084, VV 21a, [VV2000c] J140325.9-060150, AGC 540006, 2MASX J14032604-0601509, VV 21, [VV2003c] J140325.9-060150, APG 271, MCG-01-36-003, [CHM2007] LDC 1026 J140326.04-0601509, [VV2006c] J140325.9-060150, 6dFGS gJ140326.1-060151, NVSS J140326-060149, [CHM2007] HDC 850 J140326.04-0601509, [VV98c] J140325.9-060150, IRAS 14008-0547, UGCA 380, UGCA 381 [HB91] 1400-057.

Arp 271 is a pair of similarly sized interacting spiral galaxies, NGC 5426 and NGC 5427, in the constellation of Virgo. It is not certain whether the galaxies are going to eventually collide or not. They will continue interacting for tens of millions of years, creating new stars as a result of the mutual gravitational attraction between the galaxies, a pull seen in the bridge of stars already connecting the two. Located about 130 million light-years away, the Arp 271 pair is about 130,000 light-years across. It was originally discovered in 1785 by William Herschel. It is speculated, [5] [6] that the Milky Way will undergo a similar collision in about five billion years with the neighbouring Andromeda Galaxy, which is currently located about 2.6 million light-years away. [7]

Contents

Supernovae in NGC 5426

Two supernovae have been observed in NGC 5426:

Supernovae in NGC 5427

Two supernovae have been observed in NGC 5427:

Related Research Articles

<span class="mw-page-title-main">Messier 83</span> Barred spiral galaxy in the constellation Hydra

Messier 83 or M83, also known as the Southern Pinwheel Galaxy and NGC 5236, is a barred spiral galaxy approximately 15 million light-years away in the constellation borders of Hydra and Centaurus. Nicolas-Louis de Lacaille discovered M83 on 17 February 1752 at the Cape of Good Hope. Charles Messier added it to his catalogue of nebulous objects in March 1781.

<span class="mw-page-title-main">Messier 61</span> Galaxy in the constellation Virgo

Messier 61 is an intermediate barred spiral galaxy in the Virgo Cluster of galaxies. It was first discovered by Barnaba Oriani on May 5, 1779, six days before Charles Messier discovered the same galaxy. Messier had observed it on the same night as Oriani but had mistaken it for a comet. Its distance has been estimated to be 45.61 million light years from the Milky Way Galaxy. It is a member of the M61 Group of galaxies, which 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.

<span class="mw-page-title-main">Messier 66</span> Intermediate spiral galaxy in the constellation Leo

Messier 66 or M66, also known as NGC 3627, is an intermediate spiral galaxy in the southern, equatorial half of Leo. It was discovered by French astronomer Charles Messier on 1 March 1780, who described it as "very long and very faint". This galaxy is a member of a small group of galaxies that includes M65 and NGC 3628, known as the Leo Triplet or the M66 Group. M65 and M66 are a common object for amateur astronomic observation, being separated by only 20′.

<span class="mw-page-title-main">NGC 3184</span> Galaxy in the constellation Ursa Major

NGC 3184, the Little Pinwheel Galaxy, is a spiral galaxy approximately 40 million light-years away in the constellation Ursa Major. Its name comes from its resemblance to the Pinwheel Galaxy. It was discovered on 18 March 1787 by German-British astronomer William Herschel. It has two HII regions named NGC 3180 and NGC 3181.

<span class="mw-page-title-main">Antennae Galaxies</span> Interacting galaxies in the constellation Corvus

The Antennae Galaxies are a pair of interacting galaxies in the constellation Corvus. They are currently going through a starburst phase, in which the collision of clouds of gas and dust, with entangled magnetic fields, causes rapid star formation. They were discovered by William Herschel in 1785.

<span class="mw-page-title-main">NGC 1365</span> Galaxy in the constellation Fornax

NGC 1365, also known as the Fornax Propeller Galaxy or the Great Barred Spiral Galaxy, is a double-barred spiral galaxy about 56 million light-years away in the constellation Fornax. It was discovered on 2 September 1826 by Scottish astronomer James Dunlop.

<span class="mw-page-title-main">NGC 4414</span> Galaxy in the constellation Coma Berenices

NGC 4414, also known as the Dusty Spiral Galaxy, is an unbarred spiral galaxy about 62 million light-years away in the constellation Coma Berenices. It was discovered by German-British astronomer William Herschel on 13 March 1785.

<span class="mw-page-title-main">NGC 1316</span> Lenticular radio galaxy in the constellation Fornax

NGC 1316 is a lenticular galaxy about 60 million light-years away in the constellation Fornax. It is a radio galaxy and at 1400 MHz is the fourth-brightest radio source in the sky.

<span class="mw-page-title-main">NGC 3310</span> Galaxy in the constellation Ursa Major

NGC 3310 is a grand design spiral galaxy in the constellation Ursa Major. It is a starburst galaxy and it is likely that NGC 3310 collided with one of its satellite galaxies about 100 million years ago, triggering widespread star formation. It is thought to be located approximately 46 million light-years away from the Earth, and is thought to be about 22,000 light-years wide.

<span class="mw-page-title-main">NGC 2207 and IC 2163</span> Pair of colliding spiral galaxies in the constellation Canis Major

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.

<span class="mw-page-title-main">NGC 3938</span> Galaxy in the constellation Ursa Major

NGC 3938 is an unbarred spiral galaxy in the Ursa Major constellation. It was discovered on 6 February 1788 by William Herschel. It is one of the brightest spiral galaxies in the Ursa Major South galaxy group and is roughly 67,000 light years in diameter. It is approximately 43 million light years away from Earth. NGC 3938 is classified as type Sc under the Hubble sequence, a loosely wound spiral galaxy with a smaller and dimmer bulge. The spiral arms of the galaxy contain many areas of ionized atomic hydrogen gas, more so towards the center.

<span class="mw-page-title-main">NGC 3021</span> Galaxy in the constellation Leo Minor

NGC 3021 is a spiral galaxy in the northern constellation of Leo Minor. It is about 93 million light-years away from Earth, and is receding with a heliocentric radial velocity of 1,537±4 km/s. This galaxy was discovered December 7, 1785 by Anglo-German astronomer William Herschel. The morphological classification of NGC 3021 is SA(rs)bc, which indicates a spiral galaxy with no central bar (SA), an incomplete inner ring structure (rs), and moderate to loosely wound spiral arms (bc).

<span class="mw-page-title-main">NGC 6181</span> Galaxy in the constellation Hercules

NGC 6181 is a barred spiral galaxy located in the constellation Hercules. It is designated as SB(rs)c in the galaxy morphological classification scheme and was discovered by William Herschel on 28 April 1788. The galaxy is 107 million light years away.

<span class="mw-page-title-main">NGC 488</span> Spiral galaxy in the constellation Pisces

NGC 488 is a face-on spiral galaxy in the constellation Pisces. It was discovered by German-British astronomer William Herschel on 13 December 1784. It is at a distance of about 90 million light-years away from Earth. Its diameter is estimated to be 52,6 Kpc. The galaxy has a large central bulge, and is considered a prototype galaxy with multiple spiral arms. Its arms are tightly wound. Star forming activity has been traced within the arms. The nucleus of NGC 488 has been found to be chemically decoupled, being twice as metal rich as the central bulge of the galaxy. NGC 488, with the exception of its smaller companions, that form NGC 488 group, is an isolated galaxy.

<span class="mw-page-title-main">NGC 1084</span> Galaxy in the constellation Eridanus

NGC 1084 is an unbarred spiral galaxy in the constellation Eridanus. It is located at a distance of about 63 million light-years away from the Milky Way. The galaxy was discovered by William Herschel on 10 January 1785. It has multiple spiral arms, which are not well defined. It belongs in the same galaxy group with NGC 988, NGC 991, NGC 1022, NGC 1035, NGC 1042, NGC 1047, NGC 1052 and NGC 1110. This group is in turn associated with the Messier 77 group.

<span class="mw-page-title-main">NGC 908</span> Spiral galaxy in the constellation Cetus

NGC 908 is an unbarred spiral galaxy in the constellation Cetus. It was discovered on 20 September 1786 by William Herschel. This galaxy is 56 million light years away from Earth. It is the main galaxy in the NGC 908 group, which also includes NGC 899, NGC 907, and IC 223.

<span class="mw-page-title-main">NGC 4647</span> Spiral galaxy in the constellation Virgo

NGC 4647 is an intermediate spiral galaxy estimated to be around 63 million light-years away in the constellation of Virgo. It was discovered by astronomer William Herschel on March 15, 1784. NGC 4647 is listed along with Messier 60 as being part of a pair of galaxies called Arp 116; their designation in Halton Arp's Atlas of Peculiar Galaxies. The galaxy is located on the outskirts of the Virgo Cluster.

<span class="mw-page-title-main">NGC 5468</span> Spiral galaxy in the constellation Virgo

NGC 5468 is an intermediate spiral galaxy located in the constellation Virgo. It is located at a distance of about 140 million light-years from Earth, which, given its apparent dimensions, means that NGC 5468 is about 110,000 light-years across. It was discovered by William Herschel on March 5, 1785.

<span class="mw-page-title-main">NGC 3947</span> Galaxy in the constellation Leo

NGC 3947 is a barred spiral galaxy in the constellation of Leo. Its velocity with respect to the cosmic microwave background is 6528 ± 23 km/s, which corresponds to a Hubble distance of 314.0 ± 22.0 Mly (96.28 ± 6.75 Mpc). In addition, three non redshift measurements give a distance of 284.67 ± 12.90 Mly (87.28 ± 3.956 Mpc). It was discovered by German-British astronomer William Herschel on 26 April 1785.

<span class="mw-page-title-main">NGC 2466</span> Galaxy in the constellation Volans

NGC 2466 is a spiral galaxy in the constellation of Volans. Its velocity with respect to the cosmic microwave background is 5428 ± 10 km/s, which corresponds to a Hubble distance of 261.2 ± 18.3 Mly (80.07 ± 5.61 Mpc). The galaxy was discovered by British astronomer John Herschel on 20 February 1835.

References

  1. 1 2 "SIMBAD Astronomical Database". Results for Arp 271. Retrieved 2018-05-22.
  2. 1 2 "The Interactive NGC Catalog Online". Results for NGC 5427. Retrieved 2010-09-22.
  3. ↑ "Results for object NGC 5426 (NGC 5426)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2021-02-18.
  4. ↑ "Results for object NGC 5427 (NGC 5427)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2021-02-18.
  5. ↑ "NASA's Hubble Shows Milky Way is Destined for Head-On Collision". 15 March 2021.
  6. ↑ "NASA". Archived from the original on 2020-11-12. Retrieved 2013-11-28.
  7. ↑ "Arp 271 — galaxies drawn together".
  8. ↑ Perlmutter, S.; Pennypacker, C.; Carlson, S.; Hamilton, N.; Marvin, H.; Muller, R.; Smith, C. (1991). "Supernova 1991B in NGC 5426". International Astronomical Union Circular (5163): 1. Bibcode:1991IAUC.5163....1P.
  9. ↑ "SN 1991B". Transient Name Server. IAU . Retrieved 4 December 2024.
  10. ↑ Monard, L. A. G.; Brimacombe, J.; Jacques, C.; Pimentel, E. (2009). "Supernova 2009mz in NGC 5426". Central Bureau Electronic Telegrams. 2096: 1. Bibcode:2009CBET.2096....1M.
  11. ↑ "SN 2009mz". Transient Name Server. IAU . Retrieved 4 December 2024.
  12. ↑ Searle, L.; Wade, R.; Oke, J. B. (1976). "Supernova in NGC 5427". International Astronomical Union Circular (2984): 1. Bibcode:1976IAUC.2984....1S.
  13. ↑ "SN 1976D". Transient Name Server. IAU . Retrieved 4 December 2024.
  14. ↑ Bishop, David. "Supernovae 2021pfs in NGC 5427". Rochester Astronomy. Retrieved 4 December 2024.
  15. ↑ "SN 2021pfs". Transient Name Server. IAU . Retrieved 4 December 2024.
  16. ↑ "VIMOS's last embrace". www.eso.org. Retrieved 21 May 2018.


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