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Contains:  M 43, NGC 1982, M 42, Great Nebula in Orion, NGC 1976, The star 45Ori, The star θ2Ori, The star θ1Ori
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M43 off center, 


            Scotty Bishop
M43 off center

M43 off center

Technical card

Imaging telescope or lens:TPO 8" f/8 Ritchey-Chretien Astrograph

Imaging camera:Pentax K-3

Guiding telescope or lens:Astromania 60mm Guide Scope

Guiding camera:MGEN II

Focal reducer:William Optics FFII

Software:Adobe Phosotshop CS6Luc Coiffier's DSS 4.1.0 64 bit

Resolution: 5220x3471

Dates:Dec. 12, 2018

Frames: 30x180" ISO1600

Integration: 1.5 hours

Flats: ~10

Bias: ~50

Avg. Moon age: 4.73 days

Avg. Moon phase: 23.25%

Bortle Dark-Sky Scale: 4.00 job: 2419797

RA center: 84.064 degrees

DEC center: -5.280 degrees

Pixel scale: 0.622 arcsec/pixel

Orientation: 99.790 degrees

Field radius: 0.542 degrees

Data source: Backyard


I went to shoot M43, but messed up on it and didn't have it centered. I decided to process it anyway. Ohh, and there was no way to recover the core of M42 that was peeking in. I took this in my front yard.



Scotty Bishop
License: None (All rights reserved)

Sky plot

Sky plot


M43 off center, 


            Scotty Bishop

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