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NGC 2342
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| 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 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]
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
[edit]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]
See also
[edit]References
[edit]- ^ a b c d e f g h i j k l "Results for object NGC 2342". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 4 August 2024.
- ^ Seligman, Courtney. "New General Catalogue Objects: NGC 2342". Celestial Atlas. Retrieved 14 December 2024.
- ^ Holmberg, Erik (1 January 1937). "A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems". Annals of the Observatory of Lund. 6: 1–173. Bibcode:1937AnLun...6....1H. Retrieved 4 August 2024.
- ^ "SN 2023vck". Transient Name Server. IAU. Retrieved 15 December 2024.
- ^ "SN 2025aebt". Transient Name Server. IAU. Retrieved 25 November 2025.
External links
[edit]
Media related to NGC 2342 at Wikimedia Commons- NGC 2342 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
