Pretzel Nebula, SH2-224 in CFHT Palette
Copyright © 2011
SH2-224, Supernova remnant, SNR, in the constellation Auriga in the CFHT color palette. I have named this the Pretzel Nebula as I have not found any references to names for this object.
Distance: 14,500 light years.
Camera: SBIG ST-2000XM
Telescope: Astrophysics Starfire 140 EDT F7.5
Mount: Astro-Physics Mach1 GTO with Advanced Telescope Systems portable pier
Images: Using the narrowband CFHT color palette 114 sub images @ 20 minutes each of 40 Ha, 39 OIII,
35 SII for a total exposure time of 38 hours.
Date: Between November 19 & December 6, 2008
Software: Camera, mount, and guider control - CCD Commander & MaximDL, calibration and stacking - CCDStack, further processing in Photoshop CS4.