Astronomy:NGC 3408
From HandWiki
| NGC 3408 | |
|---|---|
 NGC 3408 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 10h 52m 11.6721s[1] |
| Declination | +58° 26′ 17.272″[1] |
| Redshift | 0.031582±0.0000107[1] |
| Helio radial velocity | 9,468±3 km/s[1] |
| Distance | 462.8 ± 32.4 Mly (141.91 ± 9.94 Mpc)[1] |
| Apparent magnitude (V) | 14.3g[1] |
| Characteristics | |
| Type | Sc[1] |
| Size | ~175,800 ly (53.90 kpc) (estimated)[1] |
| Apparent size (V) | 0.85′ × 0.75′[1] |
| Other designations | |
| IRAS 10490+5842, UGC 5977, MCG+10-16-016, PGC 32616[1] | |
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).[1] It was discovered by German-British astronomer William Herschel on 8 April 1793.[2][3]
NGC 3408 is a radio galaxy, i.e. it has giant regions of radio emission extending well beyond its visible structure.[4][5]
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.[6]
See also
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Results for object NGC 3408". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+3408.
- ↑ 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. doi:10.1098/rstl.1802.0021. Bibcode: 1802RSPT...92..477H.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 3408". https://cseligman.com/text/atlas/ngc34.htm#3408.
- ↑ 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. doi:10.1111/j.1365-2966.2012.20414.x. Bibcode: 2012MNRAS.421.1569B.
- ↑ "NGC 3408". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+3408.
- ↑ "SN 2018ka". IAU. https://www.wis-tns.org/object/2018ka.
External links
- NGC 3408 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
10h 52m 11.6721s, +58° 26′ 17.272″
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