Jupiter Image 2009/05/06(UT)

木星 ALPO-Japan Latest

Jupiter Image 2009/05/06(UT)
阿久津富夫
Anthony Wesley,Mike Salway
Anthony,M.Salway,T.Akutsu

Anthony Wesley (332mm Newton)

Conditions on Jupiter were the best so far this season, maybe 7/10 on average during this capture. Io and its shadow are well positioned here, and with sufficient averted imagination a dark spot can be seen near the south pole (top) on Io.
Oval BA is very faint, but there is another small storm adjacent to it at the same latitude that's even more visible, and a reddish spot between them. This might need closer wathcing to see what's going on here..
*Note both Io and its shadow have had their RGB layers realigned to compensate for its proper motion while the data was captured.

[Anthony Wesley,Murrumbateman Australia]
≪アンソニオーストラリア≫

Mike Salway(304mm newton)

I had reasonably good seeing for about an hour 
 long enough to capture 7 runs of Jupiter with the Galilean Moon Io
and its shadow transiting across the Jovian disc. The red channel was pretty
good in almost all images, but unfortunately the blue channel was pretty
ordinary, bringing down most of the images from what they could’ve been.
Still, I can’t complain as the last few days have seen some better than
average conditions, allowing me to finally start getting some runs on the
board with this Jupiter season. The best two images from the session are
shown here, as well as a 7-frame animation of the red channel showing
Jupiter rotating and Io and its shadow in transit. Oval BA is definitely
fainter than last year, but still has an orange ring with a lighter/white
centre. As Anthony Wesley pointed out in his beautiful image, there’s
another white storm which appears to have an orange ring around it just to
the right of Oval BA, and in-between the two there’s a dark spot. It will be
interesting to see what happens to this trio over the next few weeks.
7-frame animation here: Jupiter, Io and Shadow



[Mike Salway Central Coast,NSW Australia]

Tomio Akutsu (355mmSC C14)

イオが左周辺にあり、赤っぽい。

≪Cebu PHILLIPINES  阿久津富夫≫

ALPO-Japan Latest Jupiter Section	2009/05/07
	2009/05/05