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


            K. Schneider
M 42, M 43
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M 42, M 43

Technical card

Imaging telescopes or lenses: TS APO 90/600

Imaging cameras: Canon EOS 700Da cooled

Mounts: Vixen Sphinx SXP

Guiding telescopes or lenses: TS Optics TSL50D Guidescope

Guiding cameras: Lacerta M-GEN Stand Alone Autoguider

Focal reducers: TS PHOTOLINE 0,79x reducer/flattener 0,79x Reducer / Flattener

Filters: Astronomik CLS CCD EOS Clip

Dates:Jan. 16, 2020

Frames: 13x45" ISO800 -10C

Integration: 0.2 hours

Darks: ~12

Flats: ~15

Bias: ~15

Avg. Moon age: 21.01 days

Avg. Moon phase: 61.94%

Temperature: 6.00

Basic astrometry details job: 3188318

RA center: 5h 35' 4"

DEC center: -5° 22' 26"

Pixel scale: 1.815 arcsec/pixel

Orientation: 359.284 degrees

Field radius: 1.226 degrees

Resolution: 3889x2919

Locations: Garden, Zwingenberg, Germany

Data source: Backyard


Besser als erwartet: eigentlich nur ein Nebenprodukt zur M 31 desselben Abends. Das Gesichtsfeld hinter unserem Haus ist sehr begrenzt, und für Objekte mit einer Deklination wie M 42 gibt es nur eine schmale Lücke zwischen einer Wand und einem hohen Baumbewuchs. Als M 31 im Kasten war, lag M 42 genau richtig. Die Lücke reichte nur für 15 Lightframes, von denen dreizehn brauchbar waren.

Better than expected: basically a side product to my recent M 31 at the same night. The field of view on my garden site is very limited, and there is only a narrow gap between a wall and some trees for objects with a declination like M 42. When the session on M 31 was finished, I found M 42 at the right place to obtain just 15 lightframes, from which 13 looked usable . For version B, I applicated a blurred mask and tried to smoothen the background a little bit more.



K. Schneider
License: None (All rights reserved)

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M 42, M 43, 


            K. Schneider