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Messier 2

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About this observation
Observer
Paul Leyland
Time of observation
10/09/2019 - 00:52
Object
Messier 2
Observing location
Tacande Observatory, MPC J22
Equipment
0.4m Dilworth-Relay
SX Trius Pro 814
Johnson-V filter
Exposure
30 seconds
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The autoguider still doesn't work so the stars were trailed slightly.  The simg program was used to extract the stellar PSF and then 10 iterations of Richardson-Lucy deconvolution applied.  The resolution was improved markedly but a ring-shaped artifact can be seen around the brightest 3 or 4 stars.

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