Jupiter with Ganymede shadow
- Hi, Group
I took this picture of Jupiter Thanksgiving morning. It's been overcast
ever since. Just thought I'd share.
ETX-105 with Meade 2X APO Barlow giving f/35 (about 2.5X);
1.3 megapixel color CMOS image sensor;
Thanksgiving morning at 6:02am PST;
386ms exposure time; about 100 frames stacked out of about 400 in Registax;
Telescope in polar mode, camera mounted to rear port
Seeing was so-so, not too bad, not too good
The shadow of Ganymede is falling on the north equatorial band. There is
a large white oval spot in the middle of the equatorial zone, which had
rotated to the center when this picture was taken. I didn't know there
would be an eclipse shadow when I set up; it wasn't until I sharpened up
the images afterwards that I got the surprise. :) I used Celestia to
find out which moon was responsible.
The telescope took almost 1:45 to cool down. I expected about an hour. I
thought about packing it in because of what I thought was bad seeing,
but I persisted and eventually started getting good pictures. :) It's
getting colder. Need to keep that in mind.
Link to picture: