NGC 6781

About image
NGC 6781 is a small planetary nebula in the constellation of the Eagle, with dimensions 1.9 'x 1.8' and with a central star of fifteenth magnitude.

Technical data
Optic          Celestron C9.25 Edge HD f/10
Mount        Losmandy G11 with Ovision worm and FS2
Camera        Atik 4000 with Starlight Xpress filter wheel 5 positions
Filters        Baader Ha 7nm and OIII 8.5nm, 50.8 unmounted
Guiding system    OAG LB Astro Proxima and Lodestar
Exposure details  Ha 14x900" bin1 -10C
                                    OIII 10x900" bin1 -10C
Total integration  6h
Acquisition      Maxim, PHD2
Processing      Maxim, Photoshop CS5
SQM-L       18.50    
Location       Home terrace (Rescaldina, Italy)
Date          17/27 July 2014

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