Well maybe one more saturn from Tassie

davidpretorius · #1 15-01-2007, 08:13 PM

Well, what a pleasure it is to have a perfectly cooled scope and no sudden drops in temp.
Here is saturn from 3:19am last night
Mirror and ambient were exactly the same.
Captured in raw mode at 5fps for 240s, debayered in aviraw, Reg4, 4 point alignment
Very happy, my best ever
A big thing it taught me is that there were no tube currents SO, the image did not bulge or distort etc!!!!
The seeing however meant that the resolution was not great. I tested on a mag 1 star and I would estimate the seeing to be 4 to 5.

matt · #2 15-01-2007, 08:17 PM

Good stuff Davo, for the conditions

bird (Anthony Wesley) · #3 15-01-2007, 11:00 PM

Nice one Davo, you can't control the seeing. Using a properly cooled scope really opens your eyes.

cheers, Bird

jjjnettie (Jeanette) · #4 15-01-2007, 11:07 PM

Yep, you've done well. A nice fine and even Cassini division.

iceman (Mike) · #5 16-01-2007, 06:03 AM

Nice image scale Dave, probably too much for the conditions though, it would seem.

Also, remember to set a "feather" of 5 or 10 pixels in registax stacking page, to get rid of the large seem I can see that splits the planet in 2.

Nice work.

davidpretorius · #6 16-01-2007, 06:17 AM

thanks ice for the tip, i am still learning Reggie 4.

Yes, the seeing was not great, but i am stubborn in that i do not want to take the extension tube out!!!

must get myself sorted for electronic focussing!

bird (Anthony Wesley) · #7 16-01-2007, 08:28 AM

Yes, you've survived the "1 year of manual focussing hell" initiation, now you can pass on to a higher level :-)

Bird