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BAA Images Martina McGovern

Observation by Martina McGovern: M101 the Pinwheel galaxy.

Uploaded by

Martina McGovern


Martina McGovern


2021 Feb 03 - 23:00


2021 Feb 14 - 17:20



Planetarium overlay


Ursa Major

Field centre

RA: 14h03m
Dec: +54°21'
Position angle: -131°15'

Field size

1°52' × 1°16'

  • SharpStar 100Q II (Focal length 580mm, Focal Ratio f/5.8) refractor
  • SkyWatcher HEQ5 PRO
  • ZWO ASI294MC Pro, main camera
  • ZWO ASIAir Pro, ZWO EAF (Electronic Automatic Focuser)
  • ZWO 30mm Guide scope, ZWO ASI120MM mini, Guide camera
  • Optolong L-Pro Broadband filter

Approx 3hrs of data with L-Pro; 50 x 80sec, 5 x 300sec + Darks, Flats & Dark flats. Gain 100, Camera T -10C


Near Cambridge city UK, Bortle approx 4

Target name

M101 the Pinwheel galaxy.


M101 the Pinwheel galaxy.

About this image

Imaged over 2 nights 3rd & 10th Feb21
The Pinwheel Galaxy is a face-on spiral galaxy 21 million light-years away from Earth in the constellation Ursa Major.


Processing; Deep sky stacker, PixInsight with final tweaks in Photoshop and Topaz DeNoise.

Files associated with this observation
Like this image
Martin Lewis
Martin Lewis, 2021 Feb 14 - 21:19 UTC

Another beautiful composition Martina. Nice tight round stars on a velvet background. Super work.


Martina McGovern
Martina McGovern, 2021 Feb 14 - 21:33 UTC

Thanks Martin, I really appreciate your comment. I'm really enjoying my new hobby/job :) 
Just need clear skies more often....

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