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Venus Image 2020/05/21(UT)
Stanislas Maksymowicz,Pericles Enache,Volker Heesen,John Sussenbach,Detlev Niechoy
S.Maksymowicz,P.Enache,V.Heesen,J.Sussenbach,D.Niechoy
Here is a report performed with the R76mm under good images on best〓moments and operated under a very relative transparent sky.
A sign of cloud pattern was not collected,boths cap〓not conspiscious〓clear,〓caps being probably faded by the planet tilt axis and more by planet phase,no bright spot.
AL was more than suspected with the YG,B,almost full dark side,as shown,with R and without filter and with polar filter exhibiting almost the full dark side,〓 with 60x/72x magnifications,planet heigth〓48°,also with〓 a faint marked light yellowish tint well noted near the terminator. Cusp extension was evaluated to〓be a little more than the phase.
Dark markings on the AL light was there (as drawn carefully,the same for each filter in use).
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 almost full dark side extention,the intensity was reaching a L1 〓(3 the highest) .
Turning the polar filter by 90° extincted〓the light level to a reduced level,but not null,as already reported on 15th,16th,17th,18th,19th and 20th,the variation of light remained〓subtil but well noted,its extention〓limited to the dot line on the dark side.〓
At the best angle for the max transmission,extention〓was almost full dark side with the collected dark markings.〓
Using the 72x magnification the AL light filled also almost fully the dark side,〓turning it by 90° the light extention〓was reduced to the dot line limit.
AL light intensity is not growing since days,reaching L1 level on the 23rd april,the maximum observed,here as intense than this 23rd april and 19th,20th may,the polar filter giving the more discriminatable〓light on the dark side when rotated at the best angle with almost full dark side extention,and dark markings presence. The R filter in addition makes a〓little better the light detection.
The sky transparency was degrading after 16H35UT.
[Stanislas Maksymowicz Ecquevilly,France]
[Pericles Enache,Sao Paulo,Brazil]
North is up in all images; observation without apodising screen.
Observation in broad daylight with a W12 (yellow) filter. Venus is now a very slim crescent.
Deep terminator shading was visible. There were some faint,slender dark bands visible; their latitude is somewhat uncertain,
but they were definitely seen. No cusp caps or collars were seen. No cusp extensions were visible either.
The intensity increases towards the limb,so that a bright limb band appeared as well.
[Volker Heesen : Hamburg,Germany]
[スセンバッハ:オランダ]
[John Sussenbach:Houten,Netherlands]
[Detlev Niechoy : Goettingen,Germany]
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