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Contains:  M 66, NGC 3627, M 65, NGC 3623
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M65 and M66, 





    
        

            John Butler
M65 and M66

M65 and M66

Technical card

Resolution: 4545x3042

Dates:March 12, 2019

Frames:IDAS LPS D1: 300x30" (gain: 90.00) -5C bin 1x1

Integration: 2.5 hours

Darks: ~50

Flats: ~50

Bias: ~50

Avg. Moon age: 5.44 days

Avg. Moon phase: 29.94%

Bortle Dark-Sky Scale: 8.00

Mean SQM: 18.20

Astrometry.net job: 2584013

RA center: 169.873 degrees

DEC center: 13.027 degrees

Pixel scale: 0.497 arcsec/pixel

Orientation: 22.809 degrees

Field radius: 0.378 degrees

Locations: Backyard, Edison, New Jersey, United States

Data source: Backyard

Description

First image since last August.
Took a break and became obsessed with something else besides astrophotography for awhile.

Comments

Author

jpbutler
John Butler
License: None (All rights reserved)
700
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Revisions

  • M65 and M66, 





    
        

            John Butler
    Original
  • M65 and M66, 





    
        

            John Butler
    B
  • M65 and M66, 





    
        

            John Butler
    C
  • Final
    M65 and M66, 





    
        

            John Butler
    D

D

Minor changes. Downsampled and ran it thru CanonBandingReduction for the third time to remove the final horiz. line. I struggle with over processing vs: underprocessing.

Sky plot

Sky plot

Histogram

M65 and M66, 





    
        

            John Butler

In these public groups

Northeast Imagers