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Messier 44 Praesepe

Technical card

Imaging telescope or lens: Teleskop Service INED70 Apochromatic refractor

Imaging camera: QHYCCD QHY9M

Mount: Skywatcher EQ3

Guiding telescope or lens: Skywatcher 9x50 finderscope

Guiding camera: QHYCCD QHY5L-IIc

Focal reducer: William Optics P-Flat 3

Software: Pixinsight

Filters: Baader Red 2"Baader L 2''Baader Blue 2"Baader Green 2"

Accessory: QHYCCD QHY 2" Filter wheel

Resolution: 3191x2356

Dates: March 21, 2017

Frames:
Baader Blue 2": 3x180" -20C bin 1x1
Baader Green 2": 5x180" -20C bin 1x1
Baader L 2'': 16x180" -20C bin 1x1
Baader Red 2": 5x180" -20C bin 1x1

Integration: 1.5 hours

Flats: ~10

Bias: ~50

Avg. Moon age: 22.44 days

Avg. Moon phase: 46.88%

Astrometry.net job: 1523920

RA center: 130.127 degrees

DEC center: 19.603 degrees

Pixel scale: 3.409 arcsec/pixel

Orientation: -68.818 degrees

Field radius: 1.878 degrees

Locations: Nerja, Nerja, Spain

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Author

Kharan
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Messier 44 Praesepe, Kharan