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Contains:  Ring nebula in Lyra, M 57, NGC 6720, IC 1296
Getting plate-solving status, please wait...
M57 in Ha at 135mm focal length!, 





    
        

            Andreas Dietz
M57 in Ha at 135mm focal length!

M57 in Ha at 135mm focal length!

Technical card

Resolution: 530x390

Dates:May 12, 2018

Frames:Baader Planetarium Ha 36mm 7nm: 440x15" (gain: 270.00) 21C bin 1x1

Integration: 1.8 hours

Avg. Moon age: 26.33 days

Avg. Moon phase: 11.14%

Bortle Dark-Sky Scale: 5.00

Astrometry.net job: 2099958

RA center: 283.395 degrees

DEC center: 33.027 degrees

Pixel scale: 1.274 arcsec/pixel

Orientation: 180.043 degrees

Field radius: 0.116 degrees

Locations: Home Observatory, Regensburg, Bavaria, Germany

Data source: Backyard

Description

Started as a fun project, I was amazed by the high resolution of the tiny Samyang lens (focal length 135mm) in combination with the ASI178' 2.4 micron pixels (3x drizzled)! The lens was stopped down to F/2.8 and as I don't use active guiding, I reduced the exposure time to 15 seconds to avoid blurry stars. The finished stack is a selection of the best 50% of over 800 frames!
Enjoy!

Comments

Author

dakloifarwa
Andreas Dietz
License: Attribution-ShareAlike Creative Commons
1261
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Revisions

  • M57 in Ha at 135mm focal length!, 





    
        

            Andreas Dietz
    Original
  • Final
    M57 in Ha at 135mm focal length!, 





    
        

            Andreas Dietz
    B

B

cropped version

Sky plot

Sky plot

Histogram

M57 in Ha at 135mm focal length!, 





    
        

            Andreas Dietz