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Post by brianb on Aug 9, 2009 21:10:22 GMT
An irritating night last night with poor transparency and patchy drifting cloud as well as a blindingly bright moon but the seeing was actually quite reasonable at times in the gaps. Managed to get my best Jupiter image of the apparition so far:  2009 August 09, 0125 UT (+/- 2 min), CPC1100, prime focus, Astronomik 2C colour seperation filters + 742nm IR pass filter (for luminance), Imaging Source DMK41 camera. CMI=108.8 CMII=322.7 Callisto visible near ESE limb, the large dark spot near the disk centre is Callisto's shadow. Jupiter's altitude only 19.5 degrees..... roll on next year! |
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Post by Paul Evans on Aug 10, 2009 7:13:11 GMT
That's nice, getting Callisto and its shadow! As you say, it's a bit tricky at 19.5deg altitude but the coming years will bring better apparitions of Jupiter.
Paul.
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Post by bigeye155 on Aug 12, 2009 14:02:12 GMT
Well done Brian, thats an excellent result considering the altitude of 19.5 deg'. Keep 'em coming!
David.
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Post by virgo on Aug 12, 2009 19:05:20 GMT
There has been veryfew chances for imaging recently, however I got this image a few nights ago Virgo Attachments:
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Post by virgo on Aug 12, 2009 19:16:57 GMT
another pic Attachments:
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Post by virgo on Aug 12, 2009 19:37:35 GMT
another Attachments:
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Post by brianb on Aug 12, 2009 20:36:48 GMT
Yeah, the Curse of the Perseids, I think. August was horrible last year too.
Nice images, I think you must have been active a couple of hours before me! I think you might have got the "Bird Strike" just rotating off the south west limb....
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Post by virgo on Aug 12, 2009 21:53:04 GMT
Hello Brian,
I did not think that the "scar" was visible then.
I used a 5mp webcam to take the images, but it has very limited control options, for instance the frame speeed is fixed at 30 per sec, and the exposure and gain are also limited. When the conditions are right it can give very good results.
Regards,
John.
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Post by virgo on Aug 21, 2009 20:00:02 GMT
here is another pic from a file I overlooked. John. Attachments:
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Post by virgo on Aug 22, 2009 9:50:06 GMT
Hello, The weather last night was reasonable, and I waited up until the early hours to see if conditions would improve. The stiff breeze abated somewhat, but the stream of fast moving cloud continued. Jupiter was from time to time blotted out but during the clear spells the sky seemed quite transparent.I took several AVIs but was dissapointed to see that the seing was very bad, with the planetary image jumping around and going out of focus continually. However, I got a reasonable image eventually. Regards, John Attachments:
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Post by virgo on Aug 22, 2009 10:12:44 GMT
here is a slightly better one. John. Attachments:
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Post by virgo on Sept 2, 2009 8:53:20 GMT
Hello Folks, I spotted a break in the semi permanent cloud cover last night, so I rushed out the webcam to get a pic of Jupiter.The planet was never totally free of cloud however, as a fast moving layer of dense cloud was flowing along the Southern horizon. I managed to get a reasonably good AVI, but the seeing was quite poor, estimated to be Ant 3-4.The cloud cover became wall to all wall approx 23.30. Attachments:
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Post by virgo on Sept 2, 2009 9:01:01 GMT
Another image Attachments:
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Post by Paul Evans on Sept 2, 2009 17:08:35 GMT
Nice shots John - I've had good views of Jupiter - given the altitude - through my refractor these last couple of nights, though haven't managed any imaging yet. The Moons are looking good at the moment!
Clear skies,
Paul.
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