Showing posts with label Ganymede. Show all posts
Showing posts with label Ganymede. Show all posts
Saturday, August 28, 2010
Tuesday, August 03, 2010
Friday, July 30, 2010
Wednesday, July 28, 2010
Jupiter moon Ganymede 28th July 2010
Ganymede was quite a way out from Jupiter, so I imaged it separately.
Ganymede is the largest natural satellite in the Solar System at 5262 kilometers in diameter, larger than the planet Mercury.

Below is Ganymede from the JPL simulator
Ganymede is the largest natural satellite in the Solar System at 5262 kilometers in diameter, larger than the planet Mercury.

Below is Ganymede from the JPL simulator
Saturday, June 06, 2009
Tuesday, June 02, 2009
Jupiter 2nd June re-processed.
Using 3x TV Barlow converted to a 2x by unscrewing the lens and inserting it into an empty barlow tube, with the DMK holding it in place... works a treat :-)

Ah ha! I just noticed that the entry below was dated 3rd June... more sleeeep.
Below is an image taken with my 2.5x TV barlow, I don't think the seeing was quite up to it. Remembering that in the UK Jupiter is very low to the horizon.

Ah ha! I just noticed that the entry below was dated 3rd June... more sleeeep.
Below is an image taken with my 2.5x TV barlow, I don't think the seeing was quite up to it. Remembering that in the UK Jupiter is very low to the horizon.
Friday, December 19, 2008
Saturday, June 17, 2006
Wednesday, May 03, 2006
Jupiter 3rd May 2006

I thought the seeing was going to be good last night because I was imaging the Moon earlier and I was getting some patches of good seeing. But Jupiter is still very low in the sky, and there was a great deal of turbulence, the disc was wobbling like a jelly.The top image is in B&W, and the lower colour. I say colour, although I'm having problems getting the correct colour because they are so subtle. Plus I have to use an orange of yellow filter to bring out any detail. Managed to capture Ganymede and Io though, the gamma setting had to be raised to about 60% to pick them up.
Not much to see on Jupiter's disc, the GRS is around the back :-(
These were taken with a Barlow lens attached to the Toucam. I unscrewed my 2 x Celestron lens from the Barlow tube and screwed it directly onto the Toucam. It produces a nice sized disc with more contrast. When I attach a filter and then the Barlow lens, it magnifies even more.
If I use the Barlow lens as per normal, the image (in these seeing conditions) seems lacking in contrast and detail.
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