| NGC 3982 | |
|---|---|
 NGC 3982 as taken by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 11h 56m 28.1s[1] |
| Declination | +55° 07′ 31″[1] |
| Redshift | 1109 ± 6 km/s[1] |
| Distance | 67.8 ± 2.5 Mly (20.80 ± 0.77 Mpc)[2] 70.38 ± 0.23 Mly (21.58 ± 0.07 Mpc)[3] |
| Group or cluster | M109 Group |
| Apparent magnitude (V) | 12.0[1] |
| Characteristics | |
| Type | SAB(r)b[1] |
| Apparent size (V) | 1.7′ × 1.5′[1] |
| Other designations | |
| UGC 6918,[1]PGC 37520[1] | |
NGC 3982 (also known as UGC 6918) is an intermediate spiral galaxy approximately 68 million light-years away in the constellation Ursa Major. It was discovered by William Herschel on April 14, 1789, and misclassified as a planetary nebula.[4] NGC 3982 is a part of the M109 Group.
At an apparent magnitude of 12.0, NGC 3982 needs a telescope to be viewed. Using small telescopes, the galaxy appears as a very faint, diffuse patch of light, with its central region appearing as a slightly brighter diffuse ball.
- ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 3982. Retrieved 2006-11-16.
- ^ Riess, Adam G.; Li, Weidong; Stetson, Peter B.; Filippenko, Alexei V.; et al. (2005). "Cepheid Calibrations from the Hubble Space Telescope of the Luminosity of Two Recent Type Ia Supernovae and a Redetermination of the Hubble Constant". Astrophysical Journal. 627 (2): 579–607. arXiv:astro-ph/0503159. Bibcode:2005ApJ...627..579R. doi:10.1086/430497. S2CID 7590029.
- ^ Tully, R. Brent; et al. (October 2013). "Cosmicflows-2: The Data". The Astronomical Journal. 146 (4): 25. arXiv:1307.7213. Bibcode:2013AJ....146...86T. doi:10.1088/0004-6256/146/4/86. S2CID 118494842. 86.
- ^ NGC 3982. Students for the Exploration and Development of Space. Retrieved March 3, 2009