NGC 2342
Galaxy in the constellation Gemini
From Wikipedia, the free encyclopedia
NGC 2342 is a spiral galaxy in the constellation of Gemini. Its velocity with respect to the cosmic microwave background is 5445 ± 11 km/s, which corresponds to a Hubble distance of 80.31 ± 5.62 Mpc (~262 million light-years).[1] It was discovered by German astronomer Albert Marth on 10 November 1864.[2]
Right ascension07h 09m 18.0802s[1]
Declination+20° 38′ 09.762″[1]
| NGC 2342 | |
|---|---|
NGC 2342 imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Gemini |
| Right ascension | 07h 09m 18.0802s[1] |
| Declination | +20° 38′ 09.762″[1] |
| Redshift | 0.017652[1] |
| Heliocentric radial velocity | 5291 ± 2 km/s[1] |
| Distance | 261.9 ± 18.3 Mly (80.29 ± 5.62 Mpc)[1] |
| Apparent magnitude (V) | 12.6[1] |
| Characteristics | |
| Type | S pec[1] |
| Size | ~149,200 ly (45.73 kpc) (estimated)[1] |
| Apparent size (V) | 1.4′ × 1.3′[1] |
| Other designations | |
| HOLM 086A, IRAS 07063+2043, 2MASX J07091808+2038092, UGC 3709, MCG +03-19-004, PGC 20265, CGCG 086-007[1] | |
NGC 2342 is a luminous infrared galaxy (LIRG).[1] Together with NGC 2341, they both form a gravitationally bound galaxy pair listed as HOLM 86.[3]
Supernovae
Two supernovae have been observed in NGC 2342:
- SN 2023vck (Type Ib, mag 19.917) was discovered by the Zwicky Transient Facility on 15 October 2023.[4]
- SN 2025aebt (Type Ib, mag. 19.173) was discovered by ATLAS on 17 November 2025.[5]
