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M57 H-Alpha

Technical card

Resolution: 3326x2504

Dates: May 8, 2017

Frames: 20x1200"

Integration: 6.7 hours

Avg. Moon age: 12.58 days

Avg. Moon phase: 94.70%

Astrometry.net job: 1575491

Locations: Beilen Observatory B85, Beilen NL, Beilen, Drenthe, Netherlands

Description

5 x 1200s H-Alpha with a lot of moonlight No calibration, I just aligned the lights and did a stretch and HDMR in Pixinsight to show detail in the bright parts.

Comments

Author

Albert van Duin
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Revisions

B

20 x 1200s from 3 full moon nights in April and May

C

Finally did proper preprocessing with darks bias an d flat frames.

Histogram

M57 H-Alpha, Albert van Duin