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Contains:  M 3, NGC 5272
Getting plate-solving status, please wait...
Messier 3 (Canis Venatici), 


            John Michael Bell...
Messier 3 (Canis Venatici)

Messier 3 (Canis Venatici)

Technical card

Resolution: 6090x3994

Dates:May 10, 2019

Frames:Optolong 2" L pro: 36x150" (gain: 150.00) -20C bin 1x1

Integration: 1.5 hours

Darks: ~30

Bias: ~300

Avg. Moon age: 5.73 days

Avg. Moon phase: 32.82%

Bortle Dark-Sky Scale: 7.00 job: 2800450

RA center: 205.549 degrees

DEC center: 28.394 degrees

Pixel scale: 0.309 arcsec/pixel

Orientation: 251.253 degrees

Field radius: 0.313 degrees

Locations: Backyard, Tucson, Arizona, United States

Data source: Backyard


I've finally started using my 8" astrograph, I still need a coma corrector, if anyone has any good suggestions please let me know. All in all I am very pleased with the results after one night of imaging.



John Michael Bell...
License: Attribution Creative Commons


  • Messier 3 (Canis Venatici), 


            John Michael Bell...
  • Final
    Messier 3 (Canis Venatici), 


            John Michael Bell...


Total reprocess

Sky plot

Sky plot


Messier 3 (Canis Venatici), 


            John Michael Bell...