SH2-155 Cave Nebula
The Cave Nebula is a combination of diffuse, reflection and dark nebulosity and lies in the constellation of Cepheus. It is a rather dim object and difficult to image for amateur astrophotographers.
Distance to earth: 2’400 lightyears
Apparent size: 40 arcminutes (1.33 x the moon)
Imaging time: 28.6 hours
Equipment:
Mount: SW AZEQ6GT
Telescope: SW Evostar 80ED
Camera: Atik 460EX Mono
Capture information:
Date: September 2016
Total exposure time: 28.6 hours
Color combination: SII=Red, HA=Green, OIII=Blue
Image data:
45 x 1200s HA
19 x 1200s OIII bin2
22 x 1200s SII bin2