金星 ALPO-Japan Latest
Venus Image 2007/04/18(UT)
Emiel Veldhuis,John Sussenbach,Christophe Pellier,Andrew Greenwood
Emiel Veldhuis(203mm Schmidt-Cassegrain)|
Venus today with reasonable seeing and transparantie.
1100 of 3000 frames stacked.
[Emiel Veldhuis:Zwolle Netherlands]
John Sussenbach(C11 280mm SC)|
Hiroaki Akutsu(280mm Newtonian)|
Again a surprising result here ; the details of the B image differ noticeably from UV,to a point where it looks more coherent with G...
I believed that B was identical to UV (with lower contrast). However looking at my previous sessions,it seems that on the 6th there were also some marked differences.
Every other sessions show identical patterns.
[Christophe Pellier Bruz City,France]
Andrew Greenwood(150mm Maksutov)|
I have been quite fascinated by the current apparition of Venus. Prior to the
attached image I had been using my 8" f6 reflector to observe the planet using a
deep violet filter and was intrigued to see a broad but subtle cloud feature
running horizontally across its face.
I recently took delivery of a 6" 1800mm f12 Maksutov and reconfirmed the
observation I made with the 8". If anything, the dusky marking seemed more
prominent. I then waited for reasonable seeing conditions and on April 18th they
arrived. I captured four, three minute movies of the planet utilising a TouCam
740 in mono mode, a 1.25" extension tube, 2x apo. Barlow and the violet filter I
used for the visual observation.
As an Apple Macintosh user, I am certainly no expert using Registax, but you'll
find my result attached. The image saved out of the program contained detail,
but I have provided it here subjected to a very simple layer effect in PhotoShop.
18 April 2007/04/18, 1905-1924 UT
[Andrew Greenwood: Kerridge-Cheshire United Kingdom]