Contains: M 1, Crab nebula, NGC 1952
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The Crab Nebula (M1) in HOS

Technical card

Resolution: 3324x2650

Dates: Nov. 8, 2017Nov. 9, 2017

Astronomik Ha: 40x180" (gain: 139.00) -20C bin 1x1
Astronomik OIII: 60x120" (gain: 139.00) -20C bin 1x1
Astronimik SII: 40x180" (gain: 139.00) -20C bin 1x1

Integration: 6.0 hours

Darks: ~50

Flats: ~50

Bias: ~50

Avg. Moon age: 20.14 days

Avg. Moon phase: 70.57% job: 1806009

RA center: 83.604 degrees

DEC center: 22.005 degrees

Pixel scale: 0.832 arcsec/pixel

Orientation: 7.070 degrees

Field radius: 0.491 degrees


My original plan was to see how the Crab nebula looked with the Hubble Palette, but it did not seem as colorful. So I put Ha in "Red", OIII in "Green", and SII in the "Blue" channel and let the colors fall where they may.



Chuck's Astrophot...

Sky plot

Sky plot


The Crab Nebula (M1) in HOS, Chuck's Astrophotography