金星 ALPO-Japan Latest
Venus Image 2020/05/25(UT)
Stanislas Maksymowicz,Paul G. Abel,Peter Edwards,John Sussenbach
S.Maksymowicz,P.Abel,P.Edwards,J.Sussenbach
Here is a report performed with the R76mm under good images on best〓moments and operated under a transparent sky,〓operated〓between clouds.
A sign of cloud pattern was not collected,boths cap〓not conspiscious〓clear,〓caps being faded by the planet tilt axis and more by planet phase,no bright spot.
AL was more than suspected with the R filter,full dark side,as shown,with polar filter exhibiting the full dark side,〓 with 88x magnification,planet heigth〓64°,also with〓 a marked light brownish tint well noted near the terminator and away. Cusp extension was evaluated to〓be suspected highly.
Dark markings on the AL light was there.
The light intensity on dark side was degrading from〓terminator〓towards the dark side limb,partial extension with the YG,B filters,〓 using polar filter,R and no filters on full dark side extention,the intensity was almost reaching a L1 〓(3 the highest) .
Turning the polar filter by 90° extincted〓the light level to a reduced level,but not null,the variation of light remained〓subtil but well noted,its extention〓limited.
The observation was completed with the use of the VMC110L,data were the same but coloration was deep red brown markedly.
[Stanislas Maksymowicz Ecquevilly,France]
Over the past week,I have noted what seemed to be cusp extensions but these were illusory.
I did some experiments yesterday and it seems at higher magnification the cusp become harder to focus and the poor seeing can make them appear extended.
However the use of the W21 Orange filter seems to greatly reduce the effect.
I also found that the W15 yellow made no difference,the W25A red was inconclusive and the W47 made things worse as it was hard to properly focus.
It will be interesting to follow the planet through inferior conjunction!
[Paul G. Abel:Leicester:United Kingdom]
[Peter Edwars: West Sussex United Kingdom]
[スセンバッハ:オランダ]
[John Sussenbach:Houten,Netherlands]
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