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Contains:  NGC 4335, NGC 4290, The star 70UMa
Getting plate-solving status, please wait...
Winnecke 4 / Messier40, 





    
        

            Kharan
Winnecke 4 / Messier40

Winnecke 4 / Messier40

Technical card

Resolution: 3208x2412

Dates:Sept. 2, 2015

Frames:
Baader Blue 2": 10x60" -20C bin 1x1
Baader Green 2": 10x60" -20C bin 1x1
Baader L 2'': 50x60" -20C bin 1x1
Baader Red 2": 10x60" -20C bin 1x1

Integration: 1.3 hours

Flats: ~10

Bias: ~50

Avg. Moon age: 19.05 days

Avg. Moon phase: 80.65%

Astrometry.net job: 763710

RA center: 185.470 degrees

DEC center: 58.116 degrees

Pixel scale: 1.106 arcsec/pixel

Orientation: 143.484 degrees

Field radius: 0.616 degrees

Locations: Puolivälinkangas - Oulu, Oulu, Finland

Description

Had some troubles with flat calibration with this one. Not sure if it was caused by reversing the filter wheel, collimation or the moonlight, but couldn't really stretch this image at all because of leftover dust artifacts.

Comments

Author

Kharan
Kharan
License: None (All rights reserved)
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Winnecke 4 / Messier40, 





    
        

            Kharan