Hemisphere:  Northern  ·  Contains:  M 101  ·  NGC 5422  ·  NGC 5443  ·  NGC 5457  ·  NGC 5473  ·  NGC 5474  ·  NGC 5485
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M101 with ST80, 



    
        

            Dan Phillips
M101 with ST80
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M101 with ST80

Technical card

Imaging cameras: Canon EOS M

Software: DeepSkyStacker  ·  Adobe Lightroom 4  ·  gimp 2.9 beta  ·  FITSWork


Dates:April 16, 2015

Frames: 161x60"

Integration: 2.7 hours

Avg. Moon age: 26.91 days

Avg. Moon phase: 7.55%


Basic astrometry details

Astrometry.net job: 607284

RA center: 14h 4' 4"

DEC center: +54° 45' 32"

Pixel scale: 2.199 arcsec/pixel

Orientation: -78.732 degrees

Field radius: 1.683 degrees


Resolution: 620x414

Locations: Cowboy Camp, Davis, CA, United States

Description

Another aperture-stacked image:
161x60" @ full aperture (f/5)
35x30" @ f/9 (stopped down with cap), for much better results on bright stars

combined with masks in GIMP

Drove to a blue zone for this one.

Comments

Author

dphillips
Dan Phillips
License: None (All rights reserved)
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M101 with ST80, 



    
        

            Dan Phillips