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Old 18-09-2020, 03:31 PM
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Quark (Trevor)
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Jupiter September 15th 2020

Imaged Jupiter September 15th in good seeing at all wavelengths. Have a significant volume of data and it is all good, have animations at all wavelengths other than UV. Have good depth of resolved detail across the field. Of course outburst #1 dominates these data, I quite like Damian’s description of it as “The Jovian Comet” seems quite appropriate. Other detail I note is a concentrated bright spot within the NEB resolved at all wavelengths along with a very dark thin band on the Southern edge of the NEB; particularly prominent in IR and CH4 data. All data from this session has been uploaded to PVOL.

http://pvol2.ehu.eus/pvolimages/jupi...26_CH4_tba.gif

http://pvol2.ehu.eus/pvolimages/jupi...15_rgb_tba.gif

http://pvol2.ehu.eus/pvolimages/jupi...85nmIR_tba.gif

http://pvol2.ehu.eus/pvolimages/jupi...9-09_r_tba.gif

http://pvol2.ehu.eus/pvolimages/jupi...9-15_g_tba.gif

http://pvol2.ehu.eus/pvolimages/jupi...9-20_b_tba.gif


Regards
Trevor
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Old 18-09-2020, 06:28 PM
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multiweb (Marc)
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That's awesome Trev. Love the colors you're getting. Mine's too green. Again. That CH4 filter you're using is that Methane? Also do you need longer exposures when using UV?
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Old 19-09-2020, 09:23 AM
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Yep Marc CH4 is Methane, I have the ZWO filter which is centered on the Methane line so a 20nm pass centered on the 889nm line. The CH4 and UV clearly need longer exposures. I play with the exposure to get a frame rate that I am happy with. I don't like maxing out the histo so try for around 90% with an exposure for CH4 that gives me 30fps and with the UV 20 fps. I guess this is where the aperture plays a big part when using filters such as CH4 & UV and to a lesser extend the various IR filters.
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Old 19-09-2020, 10:23 AM
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20fps in UV is impressive. You've got a light bucket.
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Old 19-09-2020, 03:08 PM
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I should also have added that for CH4 and UV I use 2x Binning.
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Old 19-09-2020, 05:54 PM
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Excellent. I have a UV baader filter supposed to be good for Venus. Will try it out.
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Old 21-09-2020, 01:31 PM
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Good images and information Trevor.
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