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Messier 101: Pinwheel Galaxy

Messier 101: The Pinwheel Galaxy
Click for larger image.

Another clear moonless night turns into another night working on objects in the Big Dipper! M101 or the Pinwheel Galaxy is an annual favourite around this time of year. The nights are still long & dark, so more than 4 hours of data later I was able to capture more of the fainter arms of this beauty spiral galaxy.

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 9, 2021
  • Frames: 40×360″ (4h)
  • Integration: 4h
  • Avg. Moon age: 25.70 days
  • Avg. Moon phase: 15.72%

Basic astrometry details

  • Astrometry.net job: 4296328
  • RA center: 14h 3′ 17″
  • DEC center: +54° 21′ 39″
  • Pixel scale: 0.529 arcsec/pixel
  • Orientation: 292.937 degrees
  • Field radius: 0.331 degrees

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