Wednesday, 16 October 2013

NGC 300—another cracker galaxy from Steve Crouch

Steve explains:
This is an example of a galaxy that really needs a dark sky and my sky is anything but dark these days.  The seeing was generally pretty ordinary too but I hope the resultant image (took many hours to process) is acceptable. 
I incorporated some techniques from the new book by Rob Gendler: “Lessons from the Masters—Current concepts in Astronomical Image Processing”, which I would thoroughly recommend.
Catalogue and alternative designations  NGC 300
Type   Spiral Galaxy 
Position  01 14.4, -73 17
Constellation  Sculptor
Camera and Telescope  STXL11002 and 36.8 cm Ritchey Chretien
Focal Ratio  F9
Exposure Details  LRGB 255:130:90:110 Luminance 1x1, Colours 2x2.  Baader filters.   
NGC 300 is a large (21.9' x 15.5') fairly low surface brightness spiral galaxy once thought to be part of the Sculptor group but now thought to be a foreground object. In general shape it somewhat resembles M33 in the northern hemisphere. The apparent magnitude is 9.1.