NGC 2146
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NGC 2146 (also known as the Dusty Hand Galaxy) 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.
NGC 2146 has an isophotal diameter of 38.3 kiloparsecs (125,000 light-years), slightly larger than the Milky Way. 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. This close encounter is credited with the relatively high rates of star formation that qualify NGC 2146 as a starburst galaxy.
Supernovae
NGC 2146 has been host to three known supernova events:
- SN 2005V (TypeIb/c, mag. 16) was discovered by LIRIS on 30 January 2005.
- SN 2018zd (TypeII, mag. 17.8) is possibly a Type IIn and might be the first electron-capture supernova, and was discovered on 2 March 2018 by Kōichi Itagaki.
- SN 2024abfl (TypeII, mag. 17.5) was discovered on 15 November 2024 by Kōichi Itagaki.
External links
- Media related to NGC 2146 at Wikimedia Commons