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

Frames:
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%

Astrometry.net 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

Description

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.

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