NGC 2146

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NGC 2146
NGC 2146 HST.jpg
HST image of NGC 2146.
Observation data (J2000 epoch)
Constellation Camelopardalis
Right ascension 06h 18m 37.7s [1]
Declination +78° 21′ 25″ [1]
Redshift 893 ± 5 km/s [1]
Distance 70,000,000 lyr
Apparent magnitude  (V)11.38 [1]
Characteristics
Type SB(s)ab pec [1]
Apparent size  (V)6′.0 × 3′.4 [1]
Other designations
UGC 3429, [1] CGCG 348-017, MCG +13-05-0, 4C +78.06, PGC 18797 [1]

NGC 2146 (also known as the Dusty Hand Galaxy [2] ) is a barred spiral galaxy type SB(s)ab pec in the constellation Camelopardalis. The galaxy was discovered in 1876 by Friedrich August Theodor Winnecke. [3]

Contents

It has a diameter of 80,000 lyr. [3] The galaxy's most conspicuous feature is the dusty lanes of a spiral arm lying across the core of the galaxy as seen from Earth, the arm having been bent 45 degrees by a close encounter with a smaller galaxy possibly NGC 2146a about 0.8 billion years ago. [3] This close encounter is credited with the relatively high rates of star formation that qualify NGC 2146 as a starburst galaxy. [3]

It has been host to two known supernova events:

Related Research Articles

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<span class="mw-page-title-main">Messier 82</span> Starburst galaxy in the constellation Ursa Major

Messier 82 (also known as NGC 3034, Cigar Galaxy or M82) is a starburst galaxy approximately 12 million light-years away in the constellation Ursa Major. It is the second-largest member of the M81 Group, with the D25 isophotal diameter of 12.52 kiloparsecs (40,800 light-years). It is about five times more luminous than the Milky Way and its central region is about one hundred times more luminous. The starburst activity is thought to have been triggered by interaction with neighboring galaxy M81. As one of the closest starburst galaxies to Earth, M82 is the prototypical example of this galaxy type. SN 2014J, a type Ia supernova, was discovered in the galaxy on 21 January 2014. In 2014, in studying M82, scientists discovered the brightest pulsar yet known, designated M82 X-2.

<span class="mw-page-title-main">NGC 2403</span> Galaxy in the constellation Camelopardalis

NGC 2403 is an intermediate spiral galaxy in the constellation Camelopardalis. It is an outlying member of the M81 Group, and is approximately 8 million light-years distant. It bears a similarity to M33, being about 50,000 light years in diameter and containing numerous star-forming H II regions. The northern spiral arm connects it to the star forming region NGC 2404. NGC 2403 can be observed using 10×50 binoculars. NGC 2404 is 940 light-years in diameter, making it one of the largest known H II regions. This H II region represents striking similarity with NGC 604 in M33, both in size and location in galaxy.

<span class="mw-page-title-main">NGC 6946</span> Galaxy in the constellations Cepheus & Cygnus

NGC 6946, sometimes referred to as the Fireworks Galaxy, is a face-on intermediate spiral galaxy with a small bright nucleus, whose location in the sky straddles the boundary between the northern constellations of Cepheus and Cygnus. Its distance from Earth is about 25.2 million light-years or 7.72 megaparsecs, similar to the distance of M101 in the constellation Ursa Major. Both were once considered to be part of the Local Group, but are now known to be among the dozen bright spiral galaxies near the Milky Way but beyond the confines of the Local Group. NGC 6946 lies within the Virgo Supercluster.

<span class="mw-page-title-main">NGC 7331</span> Galaxy in the constellation Pegasus

NGC 7331, also known as Caldwell 30, is an unbarred spiral galaxy about 40 million light-years (12 Mpc) away in the constellation Pegasus. It was discovered by William Herschel in 1784. NGC 7331 is the brightest galaxy in the field of a visual grouping known as the NGC 7331 Group of galaxies. In fact, the other members of the group, NGC 7335, 7336, 7337 and 7340, lie far in the background at distances of approximately 300–350 million light years.

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

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<span class="mw-page-title-main">NGC 5253</span> Irregular galaxy in the M83 group of galaxies

NGC 5253 is an irregular galaxy in the constellation Centaurus. It was discovered by William Herschel on 15 March 1787.

<span class="mw-page-title-main">NGC 3504</span> Galaxy in the constellation Leo Minor

NGC 3504 is a barred spiral galaxy in the constellation Leo Minor. It has a Hubble distance corresponding to 88 million light-years and was discovered by William Herschel in 1785.

<span class="mw-page-title-main">NGC 7424</span> Galaxy in the constellation Grus

NGC 7424 is a barred spiral galaxy located 37.5 million light-years away in the southern constellation Grus. Its size makes it similar to our own galaxy, the Milky Way. It is called a "grand design" galaxy because of its well defined spiral arms. Two supernovae and two ultraluminous X-ray sources have been discovered in NGC 7424.

SN 2005gl was a supernova in the barred-spiral galaxy NGC 266. It was discovered using CCD frames taken October 5, 2005, from the 60 cm automated telescope at the Puckett Observatory in Georgia, US, and reported by Tim Puckett in collaboration with Peter Ceravolo. It was independently identified by Yasuo Sano in Japan. The supernova was located 29.8″ east and 16.7″ north of the galactic core. Based upon its spectrum, this was classified as a Type IIn core-collapse supernova. It has a redshift of z = 0.016, which is the same as the host galaxy.

<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 1187</span> Barred spiral galaxy in Eridanus

NGC 1187 is a barred spiral galaxy located about 60 million light-years away in the constellation of Eridanus. It was discovered on December 9, 1784 by the astronomer William Herschel.

<span class="mw-page-title-main">NGC 613</span> Galaxy in the constellation of Sculptor

NGC 613 is a barred spiral galaxy located 67 million light years away in the southern constellation of Sculptor. This galaxy was discovered in 1798 by German-English astronomer William Herschel, then re-discovered and catalogued by Scottish astronomer James Dunlop. It was first photographed in 1912, which revealed the spiral form of the nebula. During the twentieth century, radio telescope observations showed that a linear feature in the nucleus was a relatively strong source of radio emission.

<span class="mw-page-title-main">NGC 4790</span> Galaxy in the constellation Virgo

NGC 4790 is a barred spiral galaxy located in the constellation of Virgo. It was discovered on 25 March 1786 by William Herschel and included in the New General Catalogue in 1888. It is a member of the NGC 4699 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">NGC 6786</span> Galaxy in the constellation Draco

NGC 6786 is an interacting spiral galaxy 350 million light years from the Earth, in the constellation of Draco. NGC 6786 is currently interacting with LEDA 62867, and, being the larger galaxy, it is likely that NGC 6786 will absorb LEDA 62867 in the future. Both galaxies appear to be undergoing a starburst, a phenomenon commonly seen among interacting and merging galaxies.

<span class="mw-page-title-main">NGC 3859</span> Spiral galaxy in the constellation Leo

NGC 3859 is a spiral galaxy located about 295 million light-years away in the constellation Leo. It was discovered by astronomer Édouard Stephan on March 23, 1884. The galaxy is a member of the Leo Cluster.

<span class="mw-page-title-main">NGC 7130</span> Galaxy in the constellation Piscis Austrinus

NGC 7130 is a spiral galaxy located in the constellation Piscis Austrinus. It is located at a distance of about 220 million light years from Earth, which, given its apparent dimensions, means that NGC 7130 is about 100,000 light years across. It was discovered by John Herschel on September 25, 1834, and discovered independently by Lewis Swift on September 17, 1897. The location of the galaxy given in the New General Catalogue was off by 30 arcminutes in declination from the location of the galaxy.

<span class="mw-page-title-main">NGC 6951</span> Galaxy in the constellation Cepheus

NGC 6951 is a barred spiral galaxy located in the constellation Cepheus. It is located at a distance of about 75 million light-years from Earth, which, given its apparent dimensions, means that NGC 6951 is about 100,000 light-years across. It was discovered by Jérôme Eugène Coggia in 1877 and independently by Lewis Swift in 1878.

<span class="mw-page-title-main">NGC 1325</span> Galaxy in the constellation Eridanus

NGC 1325 is a flocculent spiral galaxy situated in the constellation of Eridanus. Located about 75 million light years away, it is a member of the Eridanus cluster of galaxies, a cluster of about 200 galaxies. It was discovered by William Herschel on 19 December 1799.

<span class="mw-page-title-main">NGC 3978</span> Galaxy in the constellation Ursa Major

NGC 3978 is a large intermediate spiral galaxy with a bar located in the constellation of Ursa Major. It is located 460 million light-years away from the Solar System and was discovered by William Herschel on March 19, 1790, but also observed by John Herschel on April 14, 1831.

References

  1. 1 2 3 4 5 6 7 8 NED (July 16, 2012), Results for search on NGC 2146
  2. ↑ Stoyan, Ronald; Schurig, Stephan (2014). interstellarum Deep Sky Atlas. Erlangen: Cambridge University Press; Oculum-Verlag GmbH. ISBN   978-1-107-50338-0. OCLC   920437579.
  3. 1 2 3 4 "Feeling the strain". The Hubble European Space Agency Information Centre. 22 August 2011. Retrieved 6 October 2012.
  4. ↑ Mattlla, S; Greimel, R; Meikle, P (2005). "LIRIS Discovers Supernovae in Starburst Galaxies" (PDF). The Newsletter of the Isaac Newton Group of Telescopes. 9: 16. Bibcode:2005INGN....9...16M . Retrieved 8 July 2015.
  5. ↑ "Image of supernova 2005V". rochesterastronomy.org. 4 February 2005. Retrieved 10 March 2018.
  6. ↑ Zhang, Jujia; Xu, Liang; Wang, Xiaofeng (6 March 2018). "ATEL #11379: Spectroscopic Classification of SN 2018zd as a very young Type IIn Supernova" . Retrieved 10 March 2018.
  7. ↑ Hiramatsu D, Howell D, Van S, et al. (28 June 2021). "The electron-capture origin of supernova 2018zd". Nat Astron. 5 (9): 903–910. arXiv: 2011.02176 . Bibcode:2021NatAs...5..903H. doi:10.1038/s41550-021-01384-2. S2CID   226246044.
  8. ↑ "New, Third Type Of Supernova Observed". W. M. Keck Observatory . 28 June 2021.
  9. ↑ "Astronomers discover new type of supernova". RTE News. PA. 28 June 2021. Retrieved 1 July 2021. In 1980, Ken'ichi Nomoto of the University of Tokyo predicted a third type called an electron capture supernova. ... In an electron capture supernova, as the core runs out of fuel, gravity forces electrons in the core into their atomic nuclei, causing the star to collapse in on itself.
  10. ↑ "SN 2018zd". Transient Name Server. 2 March 2018. Retrieved 10 March 2018.
  11. ↑ "Supernova 2018zd in NGC 2146". rochesterastronomy.org. 2 March 2018. Retrieved 10 March 2018.


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