NGC 2146

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]

NGC 2146
NGC 2146 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation	Camelopardalis
Right ascension	06h 18m 37.7112s[1]
Declination	+78° 21′ 25.272″[1]
Redshift	0.002999[1]
Heliocentric radial velocity	899 ± 1 km/s[1]
Distance	42.1 ± 3.0 Mly (12.92 ± 0.91 Mpc)[1]
Apparent magnitude (V)	11.38[1]
Characteristics
Type	SB(s)ab pec[1]
Size	~124,800 ly (38.25 kpc) (estimated)[1]
Apparent size (V)	6′.0 × 3′.4[1]
Other designations
4C +78.06, IRAS 06106+7822, UGC 3429, MCG +13-05-022, PGC 18797, CGCG 348-017[1]

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]

Supernovae

NGC 2146 has been host to three known supernova events:

• SN 2005V (type Ib/c, mag. 16),^[4] discovered by LIRIS on 30 January 2005.^[5][6]
• SN 2018zd (type II, mag. 17.8) is possibly a type IIn^[7] and might be the first electron-capture supernova,^[8][9][10] and was discovered on 2 March 2018 by Kōichi Itagaki.^[11]
• SN 2024abfl (type II, mag. 17.5) was discovered on 15 November 2024 by Kōichi Itagaki.^[12]

Gallery

• 
  SN 2018zd, imaged at Northolt Branch Observatories on 7 March 2018. At that time, the supernova was visible at magnitude +14.0 and brightening.^[13]