Observation by Robert James Stuart: M57 30/08/2017

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Robert James Stuart


Robert James Stuart


2017 Aug 30 - 23:30


2017 Sep 01 - 18:31


The Ring Nebula (M57)

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Field centre

RA: 18h53m
Dec: +33°01'
Position angle: +76°10'

Field size

0°33' × 0°21'

  • CGX mount with StarSense
  • Vixen VC200L f9
  • Nikon D800

ISO 1000 60s exposure


Rhayader Mid Wales

Target name

Ring Nebula M57


M57 30/08/2017

About this image

Only second time using my newly acquired Celestron CGX with StarSense. It is showing great promise and is a breeze to set up and align, even fully loaded. Testing out mount to see what errors present unguided, so I could then compare with guided images. First results are it tracks extremely well unguided for 60s at least even with 1800mm focal length and to show round star images on a 35 MP full frame Nikon D800, which is very unforgiving when it comes to vibration or shake in the sharpness of pictures. Moon was quite bright, but Nebula came out well and central star is visible. Other unguided images with this set up to follow. Results consistent (so far!)

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