About image
Sh2-155 is an emission nebula in the constellation of Cefeo, also called Cave Nebula.
The nebula appears as a heterogeneous set of bright and dark nebula parts; the distance of the entire complex from the Solar System is estimated at 2400 light years.

Technical data
Optic            Tecnosky Apo Refractor 115 - 800mm f/6.9
Mount          Losmandy G11 with Ovision worm and FS2
Camera           Atik 4000 with Starlight Xpress filter wheel 5 positions
Filters        Baader LRGB 50.8 unmounted
Guiding system      TSOAG 9mm with Lodestar
Exposure details    L 23x480" bin1 -15C
                                      R 6x300" bin2 -15C
                                      G 6x300" bin2 -15C
                                      B 6x300" bin2 -15C
Total integration    4.6h
Acquisition       Maxim, PHD2
Processing       Maxim, Photoshop CS5
SQM-L        21.15    
Location       Cegni (Pavia, Italy)
Date           9 August 2013

© Roberto Marinoni 2019 - All rights reserved