Contains: NGC 1999, M 43, NGC 1982, NGC 1977, NGC 1980, M 42, Great Nebula in Orion, NGC 1976, NGC 1975, NGC 1981, NGC 1973, The star 45Ori, The star ιOri, The star θ2Ori, The star θ1Ori, The star 42Ori
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M42

Technical card

Imaging telescope or lens: William Optics Megrez 72 FD

Imaging camera: Canon 1000 Da

Mount: Skywatcher EQ 6 Syn Scan

Guiding telescope or lens: Skywatcher 8X50 Sucher

Guiding camera: Astrolumina Alccd5L-IIc

Software: Deep Sky StackerPixInsight 1.8 PixInsinght 1.8 RC7

Accessory: Skywatcher 0,85x Flattener

Resolution: 3820x2516

Dates: Nov. 29, 2016

Frames: 24x300" ISO400

Integration: 2.0 hours

Darks: ~40

Flats: ~40

Bias: ~200

Avg. Moon age: 29.51 days

Avg. Moon phase: 0.00%

Bortle Dark-Sky Scale: 4.00

Temperature: -7.00

Astrometry.net job: 1355651

RA center: 83.728 degrees

DEC center: -5.368 degrees

Pixel scale: 3.125 arcsec/pixel

Orientation: 86.650 degrees

Field radius: 1.985 degrees

Locations: Irgendwo in Hessen, Hessen, Hessen, Germany

Description

Test with new Flattener/Reducer
2nd Version was done in the next night with more exposure time:
1st one 10x300sec.
2nd try (final version) 24x300sec with different processing in Pixinsight

Comments

Author

RolfW
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M42, RolfW