Hemisphere:  Northern  ·  Contains:  Great Nebula in Andromeda  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 221  ·  NGC 224
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M31 @ Lake Sonoma, CA, 



    
        

            ggim
M31 @ Lake Sonoma, CA
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M31 @ Lake Sonoma, CA

Technical card

Imaging telescopes or lenses: Tele Vue NP101is

Imaging cameras: Nikon D700

Mounts: Skywatcher AZ-EQ6 GT

Guiding telescopes or lenses: 80/400

Guiding cameras: QHYCCD QHY5L-II-C

Focal reducers: Tele Vue LCL-1069 Large Field Corrector

Software: darkflow.org Darkflow  ·  GNU gphoto2  ·  linguider Lin_guider


Dates:Sept. 17, 2017

Frames: 130x120" ISO1600

Integration: 4.3 hours

Darks: ~66

Flats: ~9

Flat darks: ~9

Avg. Moon age: 26.69 days

Avg. Moon phase: 8.85%


Basic astrometry details

Astrometry.net job: 1731989

RA center: 0h 42' 25"

DEC center: +41° 10' 58"

Pixel scale: 3.098 arcsec/pixel

Orientation: 274.121 degrees

Field radius: 1.716 degrees


Resolution: 3076x2537

Locations: Sonoma County Archery Range, Lake Sonoma, Geyserville, California, United States

Data source: Backyard

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ggim
License: None (All rights reserved)
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M31 @ Lake Sonoma, CA, 



    
        

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