M 103 Unguided, approximately 10 minutes exposure in 2 minute subs.
M 103 Manually guided, 25 minutes exposure in 5 minute subs.
M 103 The same image as above, but with the initial image cropped 50%, then processed with a 2x drizzle.
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| Messier
103 Open Cluster (
NGC 581 ) M 103 Unguided, approximately 10 minutes exposure in 2 minute subs.
M 103 Manually guided, 25 minutes exposure in 5 minute subs.
M 103 The same image as above, but with the initial image cropped 50%, then processed with a 2x drizzle.
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