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John Roach

Enhanced Uranus showing Polar Cap and possible Aurora

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5-incher Mars 9/22

Started by ronbee, 09/25/2005 04:04AM
Posted 09/25/2005 04:04AM Opening Post
It was really tough doing an 2X resampling this time because I had tried to "overhaul" my SP mount drive gear and something is not quite right and I seem to be having alignment problem with resampling . Registax kept giving me Mars with "tail" :-( no matter what I did and I played with so many options and settings and alignment boxes. 1X mode was no problem however. K3CCD also gave me "tail" until I tried to place Mars at the lower left hand corner of the working area box and using large working area! It was tortuously difficult and I almost gave up ;-). I'm still not happy with the "ring" though :-(.

Visually, I was so surprised to have found it really tough to see the separation between Sinus Sabaeus and Mare Serpentis (Deucalionis Regio) and I'm not sure why because I recalled it being quite easy in 2003. Also, Dawes' "Fork Bay" (Sinus Meridiani) was not seen visually and as you can see it was tough photographically as well for my small aperture but I'm glad the resampling showed that the 5-inch aperture of the NP127 could resolve it with Mars only at 16.7". In 2003, I couldn't visually resolve Dawes' "Fork Bay" with my TV-102 until Mars was 22" in size!

Ron B[ee]


Attached Image:

ronbee's attachment for post 27050
Posted 09/25/2005 04:25AM #1
Ron, nice set of images!

If you're having alignment problems, talk to Iceman over on cloudynights. His website (www.iceinspace.com) has a copy of a program I wrote a while back called ppmcentre that will take the hassle out of aligning - it locates and centres the planet in each frame for you, before you load the frames into registax.

regards, Anthony (Bird)

http://www.acquerra.com.au/astro
Posted 09/26/2005 05:31AM #2
Robert Heffner said:

Hi Ron, excellent images with very good detail!

Thanks you so much for your encouraging words, Robert.

Ron B[ee]
Posted 09/26/2005 02:19PM #3
Very nice work Ron.

Regards,
Ed Roach