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Jupiter Image 2024/12/20(UT)
森田光治,熊森照明,眞島清人,堀内 直
Michel Szlosser,Tiziano Olivetti,Niall MacNeill
M.Morita,M.Szlosser,T.Kumamori,K.Mashima,T.Horiuchi,T.Olivetti,N.MacNeill
この時期としては比較的好シーイングに恵まれました。
ややコントラストの低い画像となりました。
≪滋賀県守山市 森田光治≫[Mitsuji Morita:Siga Japan]
[Michel Szlosser : Schiltigheim,France]
久しぶりにまずまず良好なシーイングになりました。
≪大阪府堺市 熊森照明≫[Teruaki Kumamori:Ohsaka Japan]
無風に近い静かな快晴。シーイング中〜やや良。この時期としては上等です。
[眞島清人 : Kiyoto Mashima,Naha,Okinawa,Japan]
《京都府宇治市、堀内直》[T.Horiuchi: Uji- City Kyoto Japan]
attached 2 images from last night under poor seeing. The satellite Io is visible.
［ティジャノ:オリベッティ バンコック タイ］
[Tiziano Olivetti : Bangkok Thailand]
I had very good conditions, at least near the zenith, this morning for these captures of Jupiter.
As you can see my deep sky rig was running at an RMS guiding error of ~0.2 arc secs, which is about as good as it gets. That meant reasonable seeing conditions down at 35 degrees for Jupiter.
I made a widefield capture to include the Moons Io and Europa.
Io was behind the planet and moving towards being occulted by tit where Europa had
already passed in front of Jupiter and was heading away.
The Methane Band image was disappointing but it was interesting to be reminded of just how bright the Oval BA,
which is showing quite a ruddy colour, is in Methane Band.
However, I decided to see if I could do better with UV.
I went with the ZWO ASI 178MM camera where I have removed the cover glass.
When imaging Venus I normally use a 1.5X Siebert UV barlow to improve the image scale
and that works fine for Venus which is bright in UV.
For Jupiter, I was obliged to dispense with the barlow and the shorter focal length gave me a lot more photons to play with.
This is by far the best UV image I have captured of Jupiter
and that looks like a good way to configure things for future UV imaging of the planet.
The increase in image scale cannot be helped.
[Niall MacNeill : Wattle Flat,NSW,Australia]
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