Contains: NGC 7337, NGC 7335, NGC 7331, NGC 7320, NGC 7319, NGC 7318, Stephan's Quintet, NGC 7317
Getting plate-solving status, please wait...

NGC 7331 and Stephan's Quintet

Technical card

Imaging telescope or lens: Skywatcher Explorer 200PDS

Imaging camera: QHYCCD QHY9M

Mount: Skywatcher NEQ6 PRO Synscan

Guiding telescope or lens: Skywatcher 9x50 finderscope

Guiding camera: QHYCCD QHY5L-IIc

Focal reducer: Baader MPCC Mk III

Software: Pixinsight

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

Accessories: QHYCCD QHY 2" Filter wheelSeletek Armadillo

Resolution: 3246x2341

Dates: Sept. 3, 2017

Baader Blue 2": 22x180" -20C bin 1x1
Baader Green 2": 22x180" -20C bin 1x1
Baader L 2'': 45x180" -20C bin 1x1
Baader Red 2": 22x180" -20C bin 1x1

Integration: 5.6 hours

Flats: ~10

Bias: ~50

Avg. Moon age: 12.05 days

Avg. Moon phase: 91.87% job: 1716901

RA center: 339.034 degrees

DEC center: 34.168 degrees

Pixel scale: 1.106 arcsec/pixel

Orientation: 255.557 degrees

Field radius: 0.615 degrees

Locations: Puolivälinkangas - Oulu, Oulu, Finland


This was a real struggle with the colors, hard to get anything sensible out of this. Probably too short exposures.




Sky plot

Sky plot


NGC 7331 and Stephan's Quintet,