Location/ Date:

Eggersdorf, GER /  15.+ 16.+ 17. October2017

Telescope/ Lens:

10“ f/4 TS ONTC Newton

Mount:

Celestron CGE GPS

Camera:

Atik 383L+

Exposure time:

24x 1200"  Astronomik Ha 6nm

16x 1200" Astronomik [OIII] 6nm

17x 300 "  Astronomik RGB each

Total exposure:

Description:

SH2-112 is an emission nebula in the constellation Cygnus, located in proximity of the bright star Deneb. The circular nebula lies in a distance of about 5000 light-years. The nebular is exited to glow by a bright star with the nebula which is 30 times brighter than our sun. It is that bright that it is emitting light mainly in the ultra-violet range.