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Contains:  NGC 5195, Whirlpool galaxy, M 51, NGC 5194
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M51 - The Whirlpool Galaxy, 


            Brice Blanc
M51 - The Whirlpool Galaxy

M51 - The Whirlpool Galaxy

Technical card

Imaging telescope or lens:Celestron C8

Imaging camera:ASI 1600MM-Cooled

Mount:Orion EQ-G Atlas

Guiding telescope or lens:Altair Astro Guide Scope

Guiding camera:ASI ZWO 120MC

Focal reducer:Antares f6.3 Inkscape

Filter:Astronomik LRGB 1.25" Type IIc

Resolution: 4462x2974

Dates:March 23, 2019

Frames: 105x240"

Integration: 7.0 hours

Avg. Moon age: 17.49 days

Avg. Moon phase: 91.83% job: 2737894

RA center: 202.484 degrees

DEC center: 47.231 degrees

Pixel scale: 0.470 arcsec/pixel

Orientation: 89.936 degrees

Field radius: 0.350 degrees

Locations: Home, Entre Deux Guiers, Isere, France

Data source: Backyard


A classic of choice to test my new Ha filter. Unfortunaletly the weather was windy and resulting image not as detailed as I hopped despite the deconvolution process. However I learned new processing technics on this one and I like the overall result. Hope you'll like it too ! Cheers. Brice



Brice Blanc
License: None (All rights reserved)


  • M51 - The Whirlpool Galaxy, 


            Brice Blanc
  • M51 - The Whirlpool Galaxy, 


            Brice Blanc
  • Final
    M51 - The Whirlpool Galaxy, 


            Brice Blanc

Sky plot

Sky plot


M51 - The Whirlpool Galaxy, 


            Brice Blanc