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Messier 51: The Whirlpool Galaxy

Messier 51: The Whirlpool Galaxy
Click for larger image

Another favourite galaxy from the Big Dipper! This time it’s Messier 51, widely known as the Whirlpool Galaxy… and sometimes the “Question Mark” Galaxy. It’s been almost a year since I’ve photographed M51, and my skills have definitely improved! Extremely happy to see the long dust trails that have escaped me in the past.

Capture Details

  • Imaging telescopes or lenses: Celestron EdgeHD 9.25 
  • Imaging cameras: ZWO ASI 294MC PRO
  • Mounts: Celestron CGX 
  • Guiding telescopes or lenses: Orion 50mm Guidescope
  • Guiding cameras: Orion Starshoot Autoguider 
  • Focal reducers: Celestron Reducer, 0.63x 
  • Software: NINA – Nighttime Imaging ‘N’ Astronomy
  • Accessory: Celestron Focus Motor 

  • Dates:March 15, 2021
  • Frames: 33×360″
  • Integration: 3h 18′
  • Avg. Moon age: 1.92 days
  • Avg. Moon phase: 4.10%

Basic astrometry details

  • Astrometry.net job: 4314049
  • RA center: 13h 29′ 59″
  • DEC center: +47° 13′ 1″
  • Pixel scale: 0.529 arcsec/pixel
  • Orientation: 293.148 degrees
  • Field radius: 0.359 degrees

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