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Old 05-04-2014, 06:33 PM
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John Hothersall
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Mars 4th April-Good seeing!

SPX350 F39.1, PGRFlea3, Baader RGB filters.

Average seeing predicted but it looked good as the Airy disc of the star I collimated on was pretty good. I could see the Hygens crater below Syrtis Maj in the preview so I was very happy. I combined 2 sets taken 40mins apart, I should have taken 4 sets in a row to combine with WinJupos to extract extra detail but just forgot for some reason.

I managed to get the sharpest image yet with a little more detail, I feel the scopes limits can be pushed further but the seeing is the obvious limiting factor.

I managed to resolve the crater at the North end of Syrtis Major which I have not done before and few ever manage - I show a comparison with HST image of the area. I put together a GIF of the 3 sets before cloud came in.

Combined 1147+1231hrs UT
Softer version 1231hrs UT
Hubble comparison with my image.
GIF-1147, 1231, 1313hrs UT

Thanks for looking, John.
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Click for full-size image (softer version.jpg)
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Click for full-size image (Hubble comparisonx.jpg)
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Last edited by John Hothersall; 05-04-2014 at 06:46 PM.
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Old 05-04-2014, 07:15 PM
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Great shots as usual but a little "extra great" this time.
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Old 05-04-2014, 11:24 PM
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That's pretty cool John!

Mike
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Old 05-04-2014, 11:47 PM
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h0ughy (David)
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stunning
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Old 06-04-2014, 12:32 AM
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Reach out and touch it ....
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Old 06-04-2014, 01:00 AM
icytailmark (Mark)
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well done john these images are up there with the best
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Old 06-04-2014, 08:54 AM
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Totally amazing John, these are wonderfully detailed and processed images. Congratulations of resolving the crater, quite extraordinary work.

Cheers

Dennis
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Old 06-04-2014, 09:51 AM
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Blimey, that's some amazing detail.
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Old 06-04-2014, 09:55 AM
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Outstanding!
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Old 06-04-2014, 11:22 AM
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Great details John - very satisfying that we can now image craters on Mars!
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Old 06-04-2014, 07:23 PM
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Brilliant capture John.
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Old 06-04-2014, 10:05 PM
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What awesome shots John! Well done.
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Old 07-04-2014, 05:16 AM
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Stunning
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Old 09-04-2014, 10:30 AM
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Nice work John
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