Hidden Galaxy (IC 342)

Object Description

The galaxy IC 342 was discovered on 11 August 1890 by the American astronomer Edward Emerson Barnard and noted in the logbook of the Lick Observatory. Unfortunately, he failed to publish his discovery, which is why John L. E. Dreyer named William Denning as the discoverer in his «Index Catalog of Nebulae» published in 1895. [196, 314]

IC 342
IC 342: Galaxy in Camelopardalis; Takahashi Mewlon 250 CR, Reducer CR 0.73 (f=1800mm / f7.25), SBIG ST-8300; 11L x 600sec 1×1, 9R, 7G, 7B 2×2 x 600sec, 14HA 2×2 x 1200sec ; Bernese Highlands; © 2020 Bernhard Blank, Dragan Vogel [32]
IC 342
IC 342: Galaxy in Camelopardalis. North is right; Astrooptik Keller Cassegrain 400mm f/9, SBIG STL-11000M; L 120 min, R 50 min, G 20 min, B 10 min; Oberes Schlierental 1450m m.a.s.l.; © 23. 12. 2008 Niklaus J. Imfeld, Eduard von Bergen [30]

IC 342 is a starburst galaxy of the morphological type SA(s)cd and is located at a distance of about 9 to 11 million light years. [145] It would actually be one of the brightest spiral galaxies in the sky, but due to its position close to the galactic equator, the light appears strongly weakened and reddened by the thick layer of interstellar gas and dust in our Milky Way. This has earned the galaxy the nickname «Hidden Galaxy». [427]

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
Designation IC 342
Type Gx (SBc)
Right Ascension (J2000.0) 03h 46m 48.4s
Declination (J2000.0) +68° 05' 44"
Diameter 21.4 × 20.9 arcmin
Photographic (blue) magnitude 9.1 mag
Visual magnitude 8.4 mag
Surface brightness 14.9 mag·arcmin-2
Position Angle 168°
Redshift (z) 0.000103
Distance derived from z 0.44 Mpc
Metric Distance 3.600 Mpc
Identification, Remarks UGC 2847; MCG 11-5-3; CGCG 305-2; IRAS 03419+6756

Finder Chart

The galaxy IC 342 is hidden in the rather inconspicuous constellation Camelopardalis (Giraffe). The best time to observe is September to March, when the circumpolar constellation is highest in the sky.

Finder Chart Hidden Galaxy (IC 342)
Hidden Galaxy (IC 342) in constellation Camelopardalis. Charts created using SkySafari 6 Pro and STScI Digitized Sky Survey. Limiting magnitudes: Constellation chart ~6.5 mag, DSS2 close-ups ~20 mag. [149, 160]

Objects Within a Radius of 15°

References