Archive for August, 2008

Jupiter and Ganymede Aug 11 to 12

Tuesday, August 12th, 2008

Jupiter GRS and Ganymede transit on Aug 12, 2008

Above is GIF animation from about a half hour before red spot transit last night (11:57 pm) to half hour after. Images acquired with Celeston Nexstar11 with Phillips Toucam 840K at cassegrain focus. Mostly cloudless sky but only fair seeing, about 5/10 at start but deteriorated to maybe 4. Animated gif created from 24 videos (1800 frames), each stacked and aligned with Registax4.

North up and east to the left in the image more or less. Shadow from Ganymede is the black spot in the north of rotating to the right. I think red spot jr is there too, off to the lower right of the great red spot. Appears to be another one to the lower left of the GRS, not sure what that is, I’ll have to do some checking..