SUNSET: 
0
Photographer:
Hal Heaton
Location of Photo:
Burke-Gaffney Observatory, St. Mary’s University, Halifax, NS Canada
Date/Time of photo:
Nine nights spanning June 18, 2019 to August 16, 2021
Equipment:
Medjuck Telescope, Planewave Corrected Dall-Kirkham, 0.61-m aperture, f/6.5; Camera: 2x2 binned SBIG STXL-11002, plate scale 0.94 arcsec/binned pixel; Filters: Baader SII (8 nm FWHM), H-alpha (7 nm), OIII (8.5 nm); Exposure Time: 60-sec, unguided; FOV: 23.9 arcmin x 19.1 arcmin.
Description:
Situated in the approaching eastern portion of the expanding Cygnus Loop supernova remnant, this view of IC 1340 was prepared in the Hubble Color Palette by initially integrating 60-s images taken through narrowband SII (red), H-alpha (green) and OIII (blue) filters for 1.8, 1.6 and 1.6-hrs, respectively, in CCDStack v. 2. These images were combined in Photoshop CC and used to color a synthetically-produced narrowband luminance frame, whose falsely-colored stars were replaced by blending in a naturally-colored background star field. An unsharp mask was applied subsequently to enhance detail, and noise reduction was applied to the final result. The image is oriented with north up and east to the left.