NGC 3408
| NGC 3408 | |
|---|---|
 NGC 3408 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 10h 52m 11.6721s |
| Declination | +58° 26′ 17.272″ |
| Redshift | 0.031582±0.0000107 |
| Heliocentric radial velocity | 9,468±3 km/s |
| Distance | 462.8 ± 32.4 Mly (141.91 ± 9.94 Mpc) |
| Apparent magnitude (V) | 14.3g |
| Characteristics | |
| Type | Sc |
| Size | ~175,800 ly (53.90 kpc) (estimated) |
| Apparent size (V) | 0.85′ × 0.75′ |
| Other designations | |
| IRAS 10490+5842, 2MASX J10521167+5826168, UGC 5977, MCG +10-16-016, PGC 32616, CGCG 291-006 | |
NGC 3408 is a spiral galaxy in the constellation of Ursa Major. Its velocity with respect to the cosmic microwave background is 9,621±11 km/s, which corresponds to a Hubble distance of 462.8 ± 32.4 Mly (141.91 ± 9.94 Mpc). It was discovered by German-British astronomer William Herschel on 8 April 1793.
NGC 3408 is a radio galaxy, i.e. it has giant regions of radio emission extending well beyond its visible structure.
Supernova
One supernova has been observed in NGC 3408:
- SN 2018ka (Type Ia, mag. 19.4) was discovered by R. Gagliano, R. Post, E. Weinberg, Jack B. Newton, and Tim Puckett on 17 January 2018.
See also
References
- 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 3408". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 28 February 2026.
- ↑ Herschel, William (1802). "Catalogue of 500 New Nebulae, Nebulous Stars, Planetary Nebulae, and Clusters of Stars; with Remarks on the Construction of the Heavens". Philosophical Transactions of the Royal Society of London. 92: 477–528. Bibcode:1802RSPT...92..477H. doi:10.1098/rstl.1802.0021.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 3408". Celestial Atlas. Retrieved 28 February 2026.
- ↑ Best, P. N.; Heckman, T. M. (2012). "On the fundamental dichotomy in the local radio-AGN population: Accretion, evolution and host galaxy properties". Monthly Notices of the Royal Astronomical Society. 421 (2): 1569. arXiv:1201.2397. Bibcode:2012MNRAS.421.1569B. doi:10.1111/j.1365-2966.2012.20414.x.
- ↑ "NGC 3408". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 28 February 2026.
- ↑ "SN 2018ka". Transient Name Server. IAU. Retrieved 28 February 2026.
External links
Media related to NGC 3408 at Wikimedia Commons- NGC 3408 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
