This image was produced with a RCOS half meter telescope,
Apogee Alta U16M
camera and
Astrodon E-Series
filters
Exposure times: 1,065 minutes Luminance, 120 minutes Red, 120 minutes Green, 120 minutes Blue (All 1X1)
NGC 4631
in Canes Venatici (detail)
Click here
for a smaller view
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