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Contains:  NGC 5195, Whirlpool galaxy, M 51, NGC 5194
Getting plate-solving status, please wait...
M51 in Near Infrared, 


            Andreas Dietz
M51 in Near Infrared

M51 in Near Infrared

Technical card

Resolution: 1026x1062

Dates:March 21, 2018

Frames:Heliopan Infrared RG-780: 228x30" ISO25600 bin 1x1

Integration: 1.9 hours

Avg. Moon age: 4.03 days

Avg. Moon phase: 17.28% job: 2013204

RA center: 202.489 degrees

DEC center: 47.229 degrees

Pixel scale: 1.067 arcsec/pixel

Orientation: 357.684 degrees

Field radius: 0.219 degrees

Locations: Home Observatory, Regensburg, Bavaria, Germany

Data source: Backyard


Another episode of my spectral exploration of the whirlpool galaxy Messier 51. Today I'm proud to present a Near Infrared (beyond 780nm) view onto the twisted galaxies. Unfortunately I had a lot of trouble with SGP failing to plate-solve after the meridian flip, so there were only a few minutes of integration time left and the noise is still dominant. Additionally the QE in the infrared spectrum is quite low and the integration time would have to be extended even further. This makes it a bit tricky to compile a VIS-NIR version, but I'll try it nevertheless. Enjoy!



Andreas Dietz
License: Attribution-ShareAlike Creative Commons


  • M51 in Near Infrared, 


            Andreas Dietz
  • Final
    M51 in Near Infrared, 


            Andreas Dietz


cropped to same FOV as in the VIS version

Sky plot

Sky plot


M51 in Near Infrared, 


            Andreas Dietz