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Mars 16th May good seeing
SPX350 F41.3, PGRFlea3, Baader RGB filters.
Finally after cloud band moved seeing looked good with stars twinkle free and my star collimation looked very steady with arcs around Airy disc.
Mars had slight undulations but fine detail showed on screen for decent stretches of time. Another cloud band was developing so I only had an hour before the mackerel cloud appeared.
I got 6 sets in all seen in gif animation taken every 10 mins.
Regards, John.
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