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Old 28-12-2012, 05:57 AM
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jsmoraes (Jorge)
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Jupiter - occultation at December/25 (now, complete !)

It didn't work as I wished. Strong refraction, hot temperature, and some wind didn't let me get good focus and images.
A wrong strategy, using high magnification with barlow, aided the bad results.
Well, we are not perfect !

GSO 305 mm - barlow ED 2x - SPC 880

first and second - IN - Io shadow can be seen.
third - OUT - (it was very difficult to assemble this image. Moon was very bright, and Jupiter very faint. I needed two different photos to make it)

And last photo is Jupiter before the event. It is here because I saw a dark spot over NEB. Is it a result of a recent old impact or a new impact ?
The strong dark spot on SEB is Io shadow.
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Click for full-size image (ps_jupt_20121225_2250_55_A.jpg)
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Click for full-size image (joclu-_20121225_2251_57_rcol11.jpg)
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Click for full-size image (ps_jup_20121226_0009_04.jpg)
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Click for full-size image (ps_jup_impact.jpg)
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Last edited by jsmoraes; 30-12-2012 at 06:19 AM.
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Old 28-12-2012, 07:49 AM
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Shiraz (Ray)
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wow Jorge that is spectacular. Can't do anything about the seeing, but it was good enough and you captured the spectacle exceptionally well. Thank you for sharing. Regards Ray

Last edited by Shiraz; 29-12-2012 at 09:15 PM.
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Old 28-12-2012, 07:57 AM
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This is really great with a 30cm telescope !

Here in Holland (and Australia as well) no occultation but a close encounter, I just filmed it from freehand with a Canon 300mm f/5.6.

http://pix.skysurfer.eu/jwplayer/vid...20121225-2.mp4
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Old 28-12-2012, 08:52 AM
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Hi Jorge
That is a very good record of the event - I have only seen one of these live.
I suspect the lighter marking is a storm - these sometimes look bluish too.
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Old 28-12-2012, 09:01 AM
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asimov (John)
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Great work Jorge, despite the conditions on the night!
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Old 28-12-2012, 09:13 AM
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Fantastic effort Jorge, it's great to compare apparent size of those two.. Bright limb pic looks amazing
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Old 28-12-2012, 01:17 PM
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Excellent result, Jorge!
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Old 28-12-2012, 07:53 PM
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Well done in spite of the poor conditions. An excellent series of images.
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Old 28-12-2012, 10:59 PM
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great results - like what you got
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Old 29-12-2012, 10:28 AM
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Thank you, all you !

Well, first GIF goes. The entry in the process of Occultation. Unfortunately the used strategy was not one of the happiest. In other words: it went wrong! The idea of a poetic gif where the Moon would invest against Jupiter, which after escapes, did not come true in practice.

I resolved to reduce the speed due to the strange effect produced by the area still dark of the Moon.

I do not know if I will be patient to mount the exit, since the Moon was blown up absolutely. For each frame I will have to effectuate a careful assembly of substitution of the lunar image. And this is very laborious.

Image in large size can be seen in:

http://i1063.photobucket.com/albums/...f?t=1356737088
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Old 29-12-2012, 11:30 AM
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Very effective use of your still shots Jorge. Thanks for posting. I have not seen this type of event with my own eyes yet. Brisbane, 2013 will not allow for any planetary / lunar occulations.
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Old 29-12-2012, 11:34 AM
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An excellent series of images, Jorge. I have some photos from a similar occultation in 2005 and remember how pressured you feel at the time to get the exposures right and capture everything. The gif is terrific. Well done.
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Old 30-12-2012, 05:40 AM
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I found necessary will to processing and assembly of the exit of occultation of Jupiter in December 25 of 2012.

Unfortunately the image of the Moon was blown up, due to the strong brilliance. So I had to capture the image of the Moon separately, to process it and to substitute in all frames that would compose the GIF.

Though with some artificial impression, since there is no refraction change in the lunar image, the assembly was done with attention, observing the curvature of the lunar periphery.

Since they were few frames, I resolved to maintain a low speed so that it is possible to have a good visualization of Jupiter.

large scale: http://i1063.photobucket.com/albums/...f?t=1356804744
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Old 31-12-2012, 09:58 AM
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lepton3 (Ivan)
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Great images Jorge. The latest animation is fantastic.

Thanks for posting.

-Ivan
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