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Contains:  M 103, NGC 581
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M103 Open Star Cluster in Cassiopeia, 


M103 Open Star Cluster in Cassiopeia

M103 Open Star Cluster in Cassiopeia

Technical card

Resolution: 2898x2114

Dates:July 9, 2014

Frames: 2x90" ISO400

Integration: 0.1 hours

Avg. Moon age: 11.41 days

Avg. Moon phase: 87.76%

Temperature: 12.00 job: 361622

RA center: 23.344 degrees

DEC center: 60.652 degrees

Pixel scale: 1.089 arcsec/pixel

Orientation: -92.422 degrees

Field radius: 0.542 degrees

Locations: Suburban backyard N/O Seattle, Lynnwood, WA, United States


This was taken using the same PEC training performed the night before on Altair. In the meantime the equipment was taken apart and put back together for this session. The new target was in a different part of the sky and the mount was not tracking as well as the night before, so I reduced the exposures to 90 seconds for this shot of M103. As before, I just did a polar scope alignment. The image is a full resolution crop of the upper right corner.



License: None (All rights reserved)

Sky plot

Sky plot


M103 Open Star Cluster in Cassiopeia,