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Contains:  M 1, Crab nebula, NGC 1952
Getting plate-solving status, please wait...
Messier 1: The Crab Nebula, 


            John Michael Bell...
Messier 1: The Crab Nebula

Technical card

Resolution: 9004x6231

Dates:Oct. 4, 2019

Frames:Optolong L-eNhance 2": 70x200" (gain: 150.00) -15C bin 1x1

Integration: 3.9 hours

Darks: ~40

Bias: ~300

Avg. Moon age: 6.22 days

Avg. Moon phase: 37.79%

Bortle Dark-Sky Scale: 6.00 job: 2969273

RA center: 5h 34' 27"

DEC center: +21° 59' 38"

Pixel scale: 0.183 arcsec/pixel

Orientation: 90.704 degrees

Field radius: 0.278

Locations: Backyard, Tucson, Arizona, United States

Data source: Backyard


Hey there again,
Took a crack at M1 finally. Last time I did was over a year ago. J thought it would be a perfect place to to start a lesson on Messier objects on my Instagram page. The details in the remnant came out great, the black sky.... not so much. This was largely do to my lack of dithering. I've been using ASICAP for my acquisition, unfortunately it doesn't have a feature to auto dither. So unless I get up every 30 min and do it manually I get vertical streaks in my background. Any suggestion for a capture program that works for you guys?



John Michael Bell...
License: Attribution Creative Commons

Sky plot

Sky plot


Messier 1: The Crab Nebula, 


            John Michael Bell...