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

Technical card

Resolution: 2990x2268

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: 1816658

RA center: 83.632 degrees

DEC center: 22.014 degrees

Pixel scale: 0.614 arcsec/pixel

Orientation: 2.820 degrees

Field radius: 0.320 degrees

Locations: Home, Odenthal, Deutschland, Germany


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

Quote from Eric Solis (which I find a great description of this target):
The Crab Nebula is a very exciting but odd-looking object. I find it fascinating that something so beautiful (and strange) had an incredibly violent birth: the nebula we see today is the remnant of a super nova whose explosion in the year 1054AD was so violent that it suddenly appeared as the brightest object in the sky, so bright it was visible during the day.



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