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Mars Image 2012/01/12(UT)
Michel Jacquesson,Freddy Willems,Paul G. Abel
Michel.J,F.Willems,P.Abel
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Michel Jacquesson (208mm Newtonian) |
[Michel Jacquesson : Sevigny-Waleppe (Ardennes) France]
[ Freddy Willems :Hawaii U.S.A]
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Paul G. Abel(203mm reflector) |
We had some reasonable conditions last night and I spent a few hours with Mars and managed to make three reasonable disk drawings. Mars is now at 10" and so I find I can see a number of details at x250 power or more.
Drawing 1: NPC now noticeably smaller, Lowell band dark and a slightly brownish colour. Acidalium now coming onto the disk and the region seems to be darker on its proc. side. Chryse quite bright now. Indeed it seems that there might be clouds in Chryse, Teempe and Tharsis as this region seems bright and of a whitish colour. Seeing is only average for most of the time so it is hard so be sure. Erythraeum dark and showing regions of different intensity. Sinus Sabeus on the Proc. side, Noachis and Argyre bright?
Drawing 2: Seeing reasonable, definition fair. Now Acidalium and Erythraeum are well on the disk. Interestingly, it seems that the brighter regions of Chryse, Termpe and Tharsis seem to be dimmer- morning clouds which have dispersed?? Some wonderful colours present on the disk. A vast amount of dew had formed and dripping down the telescope and onto the floor!
Drawing 3: Acidalium and Erythraeum now on the proc. side. I think that Nilokeras and Ganges may have changed a little since last time, perhaps in both direction and in intensity (darker)- it is hard to be certain as definition now seems to be falling off.
0207UT-0210UT: Examined Mars with #80A filter. Interestingly, Acidaliums and Erythraeum seemed to be largely unchanged, and the brighter regions of Chryse and Tempe seemed to also be unaffected (I was expecting them to be brighter_
Mars passed close to star HIP56618, was quite interesting to watch Mars move past the star over the course of the night- no danger of an auscultation. By 0346UT I decided to move on to Saturn.
[Paul G. Abel:Leicester:United Kingdom]
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