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Venus Image 2021/10/17(UT)
Eric Sussenbach,Fabio Carvalho,Mark Lonsdale,Franco Reali,Niall MacNeill
E.Sussenbach,F.Carvalho,M.Lonsdale,F.Reali,N.MacNeill
[Eric Sussenbach : [ Willemstad,Curacao (Dutch Caribbean)]
Seeing 6/10 Trans 8/10
[Fabio Carvalho : Assis,Brazil]
[Mark Lonsdale : [Canberra,Australia]
Seeing 7/10 Trans 7/10
[Franco Reali : Prato Italy]
I had pretty good seeing conditions for these UV and IR captures of Venus on October 17th.
The UV image shows quite a lot of detail. The equatorial region, near the Central Meridian,
again〓exhibits quite a dark area surrounded by the classic although not so well defined〓chevron cloud formations.〓
For the IR capture I used the Chroma Methane Band filter at IR 889nm with a 20nm bandwidth.
I find the narrow bandwidth limits atmospheric〓dispersion〓at the lower altitudes for Venus and makes for clearer images than standard IR bandpass filters such as my ZWO IR 850nm BP filter.
There is a dark north south feature on the f side of the central meridian, which is darker to the south. This was present in sequential〓imaging runs, so is unlikely to be an artefact.
I include the IR(G)UV false colour combination.
[Niall MacNeill : Wattle Flat,NSW,Australia]
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