IC342 - Spiral Galaxy in
Camelopardalis
From SEDS.ORG:
------------------------------------------------------
IC 342 was discovered in 1895 by W.F. Denning. Edwin P. Hubble
suspected it as a member of the Local Group, but later observations
showed that it is at a distance of at least about 6, perhaps more
probably 10 million light-years.
IC 342 lies at low galactic latitude, only 10.5 degrees from the
Galactic Equator, or the Milky Way's disc plane. Therefore, it is
heavily obscured by interstellar matter of the Milky Way; recent
estimates give an extinction of about 2.4 magnitudes; without this
extinction, this galaxy would be among the brightest in the sky, and
certainly have been discovered much earlier.
IC 342 forms a group with some large and many dwarf galaxies, the
so-called Maffei 1 group. It is one of two dominating members of that
group, the other being elliptical galaxy Maffei 1, which is even more
obscurred and was thus only discovered in 1968.
------------------------------------------------------
STL11000 w Astronomik LRGB
filters
AP155 EDF F/7 w Robofocus on an AP900GTO mount
Luminance: 10 x 10 min
RGB: 4x10min each
Acquired with
CCDSoft5
Darks, Flats, Alignment and Sigma Reject combine in Maxim
Levels and Curves
in CS4
Noel's Tools used to remove vertical bars from readout noise (I think)
Click on the image to see it 1.5x this resolution and to resize it in
the
browser.
Flesherton, Ontario
Dec 12 2009
Home
