Observation by David Swan: M3

Uploaded by

David Swan

Observer

David Swan

Observed

2018 Mar 20 - 21:31

Uploaded

2018 Mar 20 - 23:12

Objects

M3

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Constellation

Canes Venatici

Field centre

RA: 13h42m
Dec: +28°22'
Position angle: +132°52'

Field size

0°28' × 0°18'

Equipment
  • 200mm SCT @ f/6.3
  • ASI183MM
  • Baader UV+IR cut
  • FireCapture, DeepSkyStacker and Photoshop
Exposure

30 x 10s

Location

Tynemouth, UK

Target name

M3

Title

M3

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Comments
Dean Ashton
Dean Ashton, 2018 Mar 21 - 12:42 UTC

Great focus and a great image David.

David Swan
David Swan, 2018 Mar 21 - 15:06 UTC

Thanks Dean. I did take a while to achieve good focus, and was careful with darks and flats. There is noticeable coma off centre, but in general I am pleased with this camera / lens set up. I'll look at trying another stretch transform and nudging the black point too this evening. I really like globulars, and M3 specifically is fantastic. 

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