Copyright © 2014
SH2-86 nebula in the constellation Vulpecula. Also called NGC 6820. The star cluster in the center is NGC 6823. A narrowband image using the HOS palette (CFHT).
Distance: 6000 light years
Size: Star cluster is 50 light years across
Camera: SBIG ST-10XME
Telescope: Astrophysics Starfire 140 EDT F7.5
Mount: Astro-Physics Mach1 GTO with Advanced Telescope Systems portable pier
Images: An HOS image with a total exposure time of 21 hours 20 minutes with 64 subexposures of 22@20min of Ha as red, 20@20min of OIII as green, & 22@20min of SII as blue.
Date: June 2014
Software: Camera, mount, and guider control - CCD Commander & MaximDL; calibration, stacking, & color creation in CCDStack, and further processing in Photoshop CS6.