Contains: M 1, Crab nebula, NGC 1952
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Messier 1 - Crab Nebula

Technical card

Resolution: 2911x2327

Dates: Nov. 14, 2017

Baader Planetarium L 31mm: 76x30" (gain: 139.00) -20C bin 1x1
Baader Planetarium RGB 31mm: 150x30" (gain: 139.00) -20C bin 1x1

Integration: 1.9 hours

Darks: ~50

Flats: ~100

Bias: ~100

Avg. Moon age: 25.79 days

Avg. Moon phase: 15.02%

Bortle Dark-Sky Scale: 5.00 job: 1815564

RA center: 83.631 degrees

DEC center: 22.017 degrees

Pixel scale: 1.290 arcsec/pixel

Orientation: 2.809 degrees

Field radius: 0.668 degrees

Locations: Home, Odenthal, Deutschland, Germany


Second target yesterday. Great to see what details this camera can produce even with these short exposures



Frank Schmitz



Complete rework. I was frustrated at the loss of details in my processing so I tried a different approach


Decided to work a bit on a closeup. Had some blown out pixel and decided to do it a bit more artistic and use the smudge tool :D Still not very happy with the color, it looks a bit to "candy style"


desaturated a bit to get rid of the candy look. still the red is a bit to magenta but with selective colors I get nasty pixel artifacts...

Sky plot

Sky plot


Messier 1 - Crab Nebula, 

    Frank Schmitz

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Cloudy Nights
Fast Newtonians