This is a 10 minute exposure using
an SBIG ST-6 CCD camera thru Kopernik's 20 inch F/8.1 telescope;
the field of view is about 5x7 arc minutes and thus covers only the inner part of the galaxy. NGC 147 is a companion of M-31.
Very diffuse, low surface brightness, with extremely small bright stellar nucleus.
(referring to NGCs 147 & 185) These two miniature elliptical galaxies appear to be distant companions of the Great Andromeda Galaxy M31. .......and are approximately the same distance .....about 2.2 million light years..... The true separation from the Andromeda Galaxy appears to be about a quarter of a million light years.
(NGC 147): ......the true diameter may be about 4,400 light years across the longer dimension. ...... The total luminosity is only about 6 million times that of the Sun, which places this dwarf system among the intrinsically faintest galaxies known. ........(M-31) is about 2,000 times more luminous!
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George Normandin, KAS
December 8th, 1997