Dwarf-Galaxy IC 10

Collaboration between Torsten Grossmann and Stargazer-Observatory.

Also available on NASA - Website.


Date: November/December 2011; Berlin

Scope: 7" TMB Apo f/8 TMB Apo

CCD: CCD: Sbig 4020: 840 Min luminance (1x1 bin); 150 min RGB, each channel (2x2 bin).

Software: Maxim DL,CCD Stack, Registax

Processing: postprocess in PS CS2, Pix IS LE


Image acquisition and data reduction by Torsten Grossmann. Image processing by Dietmar Hager.

IC 10 is a so called "dwarf-galaxy", located in the constellation "Cassiopeia" in the northern hemisphere. Discovered in 1887 by Nicholas Mayall it also represents an irregular shaped galaxy. It took the astronomers of those days quite a while to identify the object to be an extragalactic one! This was achieved in 1935. Nowadays we know IC 10 to be some 2.5 Mio Lightyears away from our solar system.

Visual Magnitude of this tiny galaxy, that appears to be some 7 by 6 arc minutes of size, is 10m4 which sounds brighter than it really is. One needs quite a serious telescope to spot this galaxy, as the surface-brigthness of the galaxy is rather faint.

Scientific investigations of recent times revelaed this galaxy to be a so called "star-burst" galaxy. That means it produces lots of new hot star-clusters. Hydrogen supplies of IC10 is huge! It forms a sort of envelope around the galaxy-body that measures about 1 arc minute. In this image above one can spot this H2-envelope pretty well, that, surprisingly enough seems to rotate in the opposite direction, than the galaxy-body does. Also, when you open the "full-size" subpage or the "enlarged-cop" version, you will perhaps see lots of those small star-clusterts within the galactic body.

To the lower right you might notice some "luminousity" in space. That seems to be intergalactic Hydrogen; the matter of which all is made of in the universe in the first place.

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