Contains: M 81, Bode's nebulae, NGC 3031
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M81 - Test under light pollution conditions

Technical card

Resolution: 3306x2127

Dates: April 28, 2017

Frames: 160x45"

Integration: 2.0 hours

Avg. Moon age: 2.31 days

Avg. Moon phase: 5.92% job: 1557775

RA center: 148.868 degrees

DEC center: 69.067 degrees

Pixel scale: 0.983 arcsec/pixel

Orientation: 65.865 degrees

Field radius: 0.537 degrees


Under light pollution conditions (mag 4) a test with M81 using my 8 inch f/4 Newtonian and an L filter. Varied cloudiness during the added to the challenge.

I had to really cover up for problems in the background so it ended up looking very clipped. But perhaps with 8-10 hours of data it could be a nice image.




Sky plot

Sky plot


M81 - Test under light pollution conditions, mikefulb

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