Observation by Martina McGovern: M51 Whirlpool Galaxy

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Martina McGovern


Martina McGovern


2020 Jun 24 - 22:36


2020 Oct 01 - 17:41


The Whirlpool Galaxy (M51)

Planetarium overlay


Canes Venatici

Field centre

RA: 13h29m
Dec: +47°10'
Position angle: -98°36'

Field size

0°27' × 0°19'

  • Celestron Edge HD 8” SCT, SkyWatcher HEQ5 PRO
  • ZWO ASI294MC Pro, main camera
  • ZWO ASIAir Pro, ZWO EAF (Electronic Automatic Focuser) & Dual-Speed 2-inch Crayford Focuser for SCT’s
  • ZWO 60mm Guide scope, ZWO ASI120MM mini, Guide camera

Near Cambridge city UK, Bortle approx 4

Target name

M51 Whirlpool Galaxy


M51 Whirlpool Galaxy

About this image

Gain 160, Camera TEC Temp -10C

180sec x 24 lights no filter, with Dithering on.

180sec x 5 Darks, No Flats or No Dark Flats – too early in my learning curve!

Software: Deep sky stacker then Photoshop (playing with basic features) + Topaz DeNoise AI.

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