M31 Andromeda Galaxy, 



    
        

            ctron

M31 Andromeda Galaxy

M31 Andromeda Galaxy, 



    
        

            ctron

M31 Andromeda Galaxy

Technical card

Imaging telescopes or lenses: Carl Zeiss Jena Sonnar 135 f3.5

Imaging cameras: Pentax KX

Mounts: IOptron Skytracker v2 portable  ·  Majestic Tripod

Software: Adobe photoshop  ·  DeepSky Stacker Stacking Software

Filters: Hoya Intensifier Red Enhancer - Didymium


Dates:Sept. 3, 2014

Frames: 20x240" (1h 20')

Integration: 1h 20'

Avg. Moon age: 8.47 days

Avg. Moon phase: 61.45%


Basic astrometry details

Astrometry.net job: 368967


Resolution: 1205x842

Description

M31, The Andromeda Galaxy, take 1. This image will be replaced in a few days once final processing is complete. Another test using the Pentax KX and Skytracker mount. 135mm Carl Zeiss Sonnar @ f/4.5. ISO 800 with didymium filter in place. 80 min exposure consisting of 20 x 4 min subs. The first Skytracker I had was still working pretty well at this time. 60% of the subs could be retained and used.
Darks and biases taken.

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M31 Andromeda Galaxy, 



    
        

            ctron