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Venus Image 2020/03/15(UT)
皆川伸也
Vincenzo della Vecchia,Yaroslav Naryzhniy,Joaquin Camarena,Zsolt Kereszty,Stanislas Maksymowicz,Paul G. Abel,Raimondo Sedrani,Ferenczi Imre,Frank J Melillo,Detlev Niechoy
N.Minagawa,V.della Vecchia,Y.Naryzhniy,J.Camarena,Z.Kereszty,S.Maksymowicz,P.Abel,R.Sedrani,Ferenczi,Frank,D.Niechoy
≪東京都 立川市 皆川伸也≫[Nobuya Minagawa:Tokyo Japan]
In average seeing. The planet is approaching dichotomy;
from my visual observations the actual phase is consistently minor than the calculated,
suggesting that Schroeter effect is in act.
[Vincenzo della Vecchia : [Aversa,Italy]
400mm Dall-Kirkham : ZWO 290MM,Seeing 6/10 Trans 8/10
[Yaroslav Naryzhniy : Ukraine,Kiev region]
[Joaquin Camarena:Spain]
[Zsolt Kereszty : Corona Borealis Observatory,Hungary,Gyor]
With the CC154mm,images average.
Bright spots were not accessible and seen,AL was absent.
The banding pattern appeared in spite of the seeing with the poles well clear and whitish.
With regards to the viewing conditions at the time of observation (18H20UT),
the planet surface was too bright sothat gost images was there a lot Moving with seeing,
very contrasted features were masked by the glaring light.
This was better with 175x instead of 123x but seeing lowered the overall result anyway.
Just an illustration of some needs.
[Stanislas Maksymowicz Ecquevilly,France]
I hope everyone is keeping well and doing OK in the current circumstances! Attached is my observation of Venus made on 15th March.
We're getting close to dichotomy now and in W15 (yellow) I made the phase 52%,in the W47 it was around 49%.
Seeing was rather poor at times so it is hard to be certain. Other points include:
- Some cloud patterns seen,particularly in the north but northing overly noticeable this evening.
- Bright Limb Band: Visible and complete
- Terminator: Geometrically regular,except in the moments of poorer seeing when it looked somewhat irregular-
this is no doubt due to the terminator shading present which is not completely uniform.
- Cusp Caps: Both cusp caps very bright,but the southern cusp cap in particular seemed to be large and brilliant,once more it appeared to slight extend into the terminator.
This is most likely to be a contrast effect and the effect was present in the W47 (indeed it may have been more obvious and the northern cusp seemed similarly effected).
- Cusp Collars: Both present but the southern cusp more easy to see.
[Paul G. Abel:Leicester:United Kingdom]
[Raimondo Sedrani : Pordenone,Italy]
[Ferenczi Imre,Budapest - Magyarorszag HUNGARY]
[Frank J Melillo Holtsville NY U.S.A]
[Detlev Niechoy : Goettingen,Germany]
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