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Contains:  M 101, NGC 5457
Getting plate-solving status, please wait...
M101 one more, 





    
        

            SJK
M101 one more

M101 one more

Technical card

Resolution: 4882x3224

Dates:April 21, 2018

Frames: 379x40" (gain: 150.00) -10C bin 2x2

Integration: 4.2 hours

Darks: ~50

Flats: ~20

Bias: ~200

Avg. Moon age: 5.86 days

Avg. Moon phase: 34.10%

Bortle Dark-Sky Scale: 7.00

Mean SQM: 19.02

Mean FWHM: 4.30

Temperature: 16.00

Astrometry.net job: 2038638

RA center: 210.798 degrees

DEC center: 54.348 degrees

Pixel scale: 0.538 arcsec/pixel

Orientation: 257.284 degrees

Field radius: 0.437 degrees

Locations: Home, Genève, Switzerland

Data source: Backyard

Description

One more M101, testing several configurations of my new ASI183...
This time Gain 150 and binning x2 for all channels including L.
L 170 R 80 G 73 B 56, 40sec all. With LP filter IDAS D1 QRO in front of corrector for all filters.

Comments

Author

SJK
SJK
License: Attribution Creative Commons
11051
Like

Revisions

  • M101 one more, 





    
        

            SJK
    Original
  • M101 one more, 





    
        

            SJK
    B
  • M101 one more, 





    
        

            SJK
    C
  • M101 one more, 





    
        

            SJK
    E
  • M101 one more, 





    
        

            SJK
    F
  • Final
    M101 one more, 





    
        

            SJK
    G

B

Reprocessed star alignment and integration

C

Drizzle & HSV Repair

E

Curves and shadows boost. Less red in background.

G

Less blueish background

Sky plot

Sky plot

Histogram

M101 one more, 





    
        

            SJK