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Venus Image 2019/12/18(UT)
Anthony Wesley,Manos Kardasis,Detlev Niechoy
Anthony.W,Kardasis,Niechoy
Some good seeing yesterday afternoon about 30 minutes before sunset.
Attached are images in UV (325-375nm) and IR (1000-1020nm),both of them show interesting cloud features.
[Anthony Wesley,Murrumbateman Australia]
≪アンソニ オーストラリア≫
I managed to finish the processing of the datasets I am sending you from Dec.18th.it took me many-many hours for the whole project to complete.
In the first animation from my images at 0.9μm there is a difference of ~30min where the features are confirmed as real and there is some small moovement.
Of course no safe speed measurements can be made. I used A.Wesley's excellent image of the same date and aligned-proccesed it to match with mine.
The images have 6h43min difference and there are many dark & bright features to make middle-clouds speed measurement.
I made measurements in the most prominent features labeled 1-7 and calculated an average speed of ~90.6 m/s.
I hope Javier will process them with more accuracy.
[Manos Kardasis,Glyfada-Athens;Greece]
《カーダシス マノス:ギリシャ アテネ》
[Detlev Niechoy : Goettingen,Germany]
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