Graem Lourens © 2017
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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