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Old 08-09-2005, 01:45 PM
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iceman (Mike)
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Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
Mars from this morning, 8th Sep

Hello father.

It's been 12 days since my last imaging session.

I'd been having imaging withdrawals, so planned to get up early to do some imaging - jetstream or no jetstream. Turns out, no jetstream! Glad about that, because it was 3am!!

The seeing was on the good side, about 7/10. I was hoping the avi's would produce my best Mars image so far, and it came close, however I think the shots I took on the 25th August were marginally better as the seeing was also a tad better.

I experimented with the processing on these, trying lots different things - the large one at the top is 1.9x resampled in registax. The other large one is because I stacked my 2x and 2.4x barlows together, to give a FL of 6000mm. The seeing was just up to it, but not quite as some nasty artifacts were introduced during processing as you can see. Also it appears stacking these 2 fairly poor quality barlows scatters the light a lot, it required a huge RGB shift in registax to align the red and blue channels. I'm guessing that a 5x powermate wouldn't have this problem.

I'm fairly happy with these, Mars is getting bigger and that's a good thing! However it only gets to 40-45deg in the north, which is a bad thing!

These shots taken with the 10" dob on the EQ platform, and the ToUcam @ 5fps and some at 10fps as the seeing deteriorated towards the end of the session.

Comments welcome.
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