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Venus Image 2017/02/24(UT)
鶴海敏久
Stanislas Maksymowicz,Paul G. Abel,John Sussenbach,Detlev Niechoy
T.Tsurumi,S.Maksmowicz,P.Abel,J.Sussenbach,D.Niechoy
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Toshihisa Tsurumi(250mm Dall Kirkham) |
≪岡山県岡山市 鶴海敏久≫[Toshihisa Tsurumi:Okayama-City Okayama-Prefecture Japan]
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Stanislas Maksymowicz (280mm,230mm cassegrain or 200mm VMC or 150mm refracter) |
As on 2013 some light on dark side was captured,faint,but with same grey tones variations in correspondance with darkenings on lighted side.
Still rather undifferent with fiter colors.
We will see later the evolution of such.
[Stanislas Maksymowicz Ecquevilly,France]
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Paul G. Abel(508mm Dall-Kirkham) |
Seeing conditions were not too bad and I was able to observe Venus in a variety of filters. The phase is now rather small,so not much of note was visible on the disk:
Illuminated Disk: The main feature now is the terminator shading as the phase is rather small. In the W#58 filter there did appear to be a darker shading near the equator.
Unilluminated Disk: Not visible. Bright Limb Band: Visible and Complete. Terminator: Geometrically regular.
Cusp Caps: Hard to see now due to the small phase but both seemed equal.
Cusp Collars: In IL neither seemed to be present,however in both the W#12 and the W#58 filters there did appear to be darker markings where the cusp collars would be.
[Paul G. Abel:Leicester:United Kingdom]
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John Sussenbach(C14 356mm SC) |
[スセンバッハ:オランダ]
[John Sussenbach:Houten,Netherlands]
[Detlev Niechoy : Goettingen,Germany]
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