IC 342
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| IC 342 | |
| Observation data: J2000 epoch | |
|---|---|
| Constellation: | Camelopardalis |
| Right ascension: | 03h 46m 48.5s[1] |
| Declination: | +68° 05′ 46″[1] |
| Redshift: | 31 ± 3 km/s[1] |
| Distance: | 10.7 ± 0.9 Mly (3.3 ± 0.3 Mpc)[2][3] |
| Type: | SAB(rs)cd[1] |
| Apparent dimensions (V): | 21'.4 × 20'.9[1] |
| Apparent magnitude (V): | 9.1[1] |
| Notable features: | |
| Other designations | |
| UGC 2847, PGC 13826[1] | |
| See also: Galaxy, List of galaxies | |
IC 342 is an intermediate spiral galaxy in the constellation Camelopardalis. The galaxy is located near the galactic equator where dust obscuration makes it a difficult object for both amateur and professional astronomers to observe.[1]
IC 342 is one of the brightest two galaxies in the IC 342/Maffei Group of galaxies, one of the galaxy groups that is closest to the Local Group. The galaxy was discovered by W.F. Denning in 1895. Edwin Hubble first thought it to be in the Local Group, but later it was demonstrated that the galaxy is outside the Local Group.[4]
It has a H II nucleus.[5]
[edit] References
- ^ a b c d e f g h NASA/IPAC Extragalactic Database. Results for IC 342. Retrieved on November 1, 2006.
- ^ I. D. Karachentsev, V. E. Karachentseva, W. K. Hutchmeier, D. I. Makarov (2004). "A Catalog of Neighboring Galaxies". Astronomical Journal 127: 2031-2068.
- ^ Karachentsev, I. D.; Kashibadze, O. G. (2006). "Masses of the local group and of the M81 group estimated from distortions in the local velocity field". Astrophysics 49 (1): 3-18.
- ^ SEDS IC 342.
- ^ Ho, Luis C.; Alexei V. Filippenko & Wallace L. W. Sargent (October 1997), "A Search for 'Dwarf' Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies", Astrophysical Journal Supplement 112: 315
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