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The Details
NGC 247 Dwarf Galaxy in Sculptor
Astro-Physics 160 EDF Refractor at f/7.5
Astro-Physics 1200 GTO
Tru-Balance LRGB filter set
08 September 2007, 09 September 2007
Grandview Campground Area, White Mountains, Eastern California
L 12 x 600 sec 1x1 bin; RGB 3 x 600 sec, 1x1 bin
Maxim DL/CCD, Registar, Photoshop CS2
Field of View: 43'38" x 32'29" centered on RA 00h47m17.8s
DEC -20°41'10” (2000.0) . North angle 118.16°; east 90° CCW from north

NGC 247 is a dwarf galaxy located approximately 12 million light years from Earth. It is part of the Sculptor Group of galaxies and is gravitationally bound to the largest member of that group, The Sculptor Galaxy NGC 253. The region that looks like a "hole" in the outer reaches of the galaxy (at about 4 o’clock from the core) is a location with a deficit of gas and therefore a lower star formation rate with a corresponding lower ultraviolet brightness. The four small spiral galaxies to the right of NGC 247, known as Burbidge's Chain, are part of a very distant group 355 million light years away.

Like other galaxies in the Sculptor Group, this object is a difficult target for many northern hemisphere imagers because of its far southerly position in the sky.




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