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Contains:  M 101, NGC 5457, NGC 5461, NGC 5473, NGC 5477
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M101 - Pinwheel Galaxy, 



    
        

            Gendra
M101 - Pinwheel Galaxy
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M101 - Pinwheel Galaxy

Technical card


Dates:March 27, 2020

Frames: 120x75" ISO400

Integration: 2.5 hours

Flats: ~33

Avg. Moon age: 2.78 days

Avg. Moon phase: 8.47%

Bortle Dark-Sky Scale: 5.00

Temperature: 20.00


Basic astrometry details

Astrometry.net job: 3461129

RA center: 14h 3' 13"

DEC center: +54° 28' 8"

Pixel scale: 0.760 arcsec/pixel

Orientation: 89.605 degrees

Field radius: 0.742 degrees


Resolution: 5888x3837

Data source: Traveller

Description

M101 - The pinwheel galaxy.
Taken on an nice clear but windy night. I'm still struggling a bit with the post processing especially since something strange happened to my bias frames. They seem to make the result much worse with massive vertical banding. Also I didn't had time to capture appropriate dark frames.

P.s.: Step-by-step I am re-uploading my previous images lost in the data-crash. There are still some images i have to find again but all the data is still here on my pc.

Comments

Author

Gendra
Gendra
License: None (All rights reserved)
370
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Revisions

  • M101 - Pinwheel Galaxy, 



    
        

            Gendra
    Original
  • Final
    M101 - Pinwheel Galaxy, 



    
        

            Gendra
    B

B

Description: Denoise and sharpen.

Sky plot

Sky plot

Histogram

M101 - Pinwheel Galaxy, 



    
        

            Gendra