Contains: 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, M43, NGC1977, NGC1981, NGC1980

Technical card

Imaging telescope or lens: Pentax 75 SDHF

Imaging camera: Atik 383L+

Mount: CGEM

Guiding camera: MAGZERO MZ-5M

Software: MaximDL5Adobe CS 5

Filters: Baader Red 2"Baader Blue 2"Baader Green 2"Baader H-alpha 7nm 2"

Accessory: Atik EFW2 Filter Wheel

Resolution: 1677x1266

Dates: Oct. 2, 2011

Frames:
Baader Blue 2": 2x240" bin 2x2
Baader Green 2": 2x240" bin 2x2
Baader H-alpha 7nm 2": 6x30" bin 1x1
Baader H-alpha 7nm 2": 5x90" bin 1x1
Baader H-alpha 7nm 2": 4x300"
Baader H-alpha 7nm 2": 2x600"
Baader Red 2": 2x240" bin 2x2

Integration: 1.2 hours

Avg. Moon age: 5.70 days

Avg. Moon phase: 32.46%

Mean SQM: 21.34

Temperature: 13.00

Astrometry.net job: 95410

RA center: 84.034 degrees

DEC center: -5.301 degrees

Pixel scale: 4.448 arcsec/pixel

Orientation: 90.179 degrees

Field radius: 1.298 degrees

Locations: San Mauro la Bruca, San Mauro la Bruca, Salerno, Italy

Description

M42, M43, NGC1977, NGC1981, NGC1980
Pentax SDHF75 and Atik383L+ on Celestron CGEM, autoguided with WO FLT110 and MagZero with MaximDl
LRGB:
L (Ha 7nm) 6x30" + 5x90" + 4x300" + 2x600";
R 2x240" (bin. 2x2);
G 2x240" (bin. 2x2);
B 2x240" (bin. 2x2);
San Mauro la Bruca (SA) - Italy
02 October 2011 - (IX Star Party)
Author Luca D Avino
MaxIm + Photoshop CS

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Luca D'Avino
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M42, M43, NGC1977, NGC1981, NGC1980, Luca D'Avino