Galaxy in the constellation Camelopardalis
| NGC 2146 |
|---|
 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 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.[2]
It has a diameter of 80,000 lyr.[2] 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.[2] This close encounter is credited with the relatively high rates of star formation that qualify NGC 2146 as a starburst galaxy.[2]
It has been host to two known supernova events:
Gallery
References
- ^ a b c d e f g h NED (July 16, 2012), Results for search on NGC 2146
- ^ a b c d "Feeling the strain". The Hubble European Space Agency Information Centre. 22 August 2011. Retrieved 6 October 2012.
- ^ 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.
- ^ "Image of supernova 2005V". rochesterastronomy.org. 4 February 2005. Retrieved 10 March 2018.
- ^ 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.
- ^ 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.
- ^ "New, Third Type Of Supernova Observed". W. M. Keck Observatory. 28 June 2021.
- ^ "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.
- ^ "SN 2018zd". Transient Name Server. 2 March 2018. Retrieved 10 March 2018.
- ^ "Supernova 2018zd in NGC 2146". rochesterastronomy.org. 2 March 2018. Retrieved 10 March 2018.
External links
Media related to NGC 2146 at Wikimedia Commons
| NGC | - NGC 2141
- NGC 2142
- NGC 2143
- NGC 2144
- NGC 2145
- NGC 2146
- NGC 2147
- NGC 2148
- NGC 2149
- NGC 2150
- NGC 2151
|
|---|
| PGC | - PGC 18793
- PGC 18794
- PGC 18795
- PGC 18796
- PGC 18797
- PGC 18798
- PGC 18799
- PGC 18800
- PGC 18801
|
|---|
| UGC | - UGC 3425
- UGC 3426
- UGC 3427
- UGC 3428
- UGC 3429
- UGC 3430
- UGC 3431
- UGC 3432
- UGC 3433
|
|---|
Authority control databases: National  | |
|---|
 | This spiral galaxy article is a stub. You can help Wikipedia by expanding it. |
![SN 2018zd, imaged at Northolt Branch Observatories on 7 March 2018. At that time, the supernova was visible at magnitude +14.0 and brightening.[10]](//upload.wikimedia.org/wikipedia/commons/thumb/d/d2/SN_2018zd_wikipedia.png/120px-SN_2018zd_wikipedia.png)
SN 2018zd, imaged at Northolt Branch Observatories on 7 March 2018. At that time, the supernova was visible at magnitude +14.0 and brightening.[10]![SN 2018zd, imaged at Northolt Branch Observatories on 7 March 2018. At that time, the supernova was visible at magnitude +14.0 and brightening.[10]](http://upload.wikimedia.org/wikipedia/commons/thumb/d/d2/SN_2018zd_wikipedia.png/120px-SN_2018zd_wikipedia.png)
Category
