Thread: Jupiter 21 July
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Old 21-07-2007, 08:53 AM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,828
Hi Ian

A very nice image Ian – I don’t know how you manage to get such good results without using a motorised focuser, even though the Mewlon focuser is quite smooth with minimal image shift!

I was out last night too, using K3CCDTools to explore the periodic error on my EM200. I poked the Mewlon 180 with Televue x2.5 Powermate and DBK 21AF04.AS at Jupiter part way through the session (21:52), as there were some reasonably good moments of seeing as I watched Nunki on the K3 display. So, just for comparison, here is a twin Mewlon shootout across Bris Vegas.

I reckon the seeing was more like 6/10 for some good periods, although later on it appeared to deteriorate to maybe 5/10 as I chased down a few doubles? If only there was a device we could plug in and use, to derive a more objective and standarised assessment of seeing?

The image is a stack of 644 from 1600 in Registax, with Wavelets 1=30 and 2=15, no other processing.

Cheers

Dennis
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