Contains:Ring nebula in Lyra, M 57, NGC 6720, IC 1296
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M57 H-Alpha, 




    

        Albert van Duin
M57 H-Alpha

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: 1593095

RA center: 283.397 degrees

DEC center: 33.034 degrees

Pixel scale: 0.615 arcsec/pixel

Orientation: -87.623 degrees

Field radius: 0.356 degrees

Locations: Beilen Observatory B85, Beilen, Drenthe, Netherlands

Data source: Backyard

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
Albert van Duin
License: None (All rights reserved)
1591
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Revisions

  • M57 H-Alpha, 




    

        Albert van Duin
    Original
  • M57 H-Alpha, 




    

        Albert van Duin
    B
  • Final
    M57 H-Alpha, 




    

        Albert van Duin
    C

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.

Sky plot

Sky plot

Histogram

M57 H-Alpha, 




    

        Albert van Duin