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Mars Image 2022/04/30(UT)
Clyde Foster,Antonio Cidadao,Mark Lonsdale
C.Foster,A.Cidadao,M.Lonsdale
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解説（安達）/ Comment by Makoto Adachi
I wasn't expecting anything this morning as I had strong jetstream conditions,
so I was pleasantly surprised to at least get some images out.
Amazonis is central with M Sirenum and M Cimmerium stretching across the upper hemisphere.
[Clyde Foster:Centurion,South Africa]
please find an IR image obtained this morning where,
arrowed on the enhanced〓image at the right,
are seen two (three?) bright areas that may represent dust,
Hope that other observers and different filters can confirm the observation.
I attach another Mars animation, comparing my images of April 27 and 30. SLOAN z'-s' filter for both cases.
Hellas bright spot is not visible on April 27 but appears on april 30 image (and also remains on May1 image already sent).
On the other hand, I had previously sent an animation confirming that the SPC bright spot does not rotate with the planet.
Today's animation confirms that observation. Can tis be some kind of〓"specular" reflection on SPC ice,
related with a Sun-Mars-Earth angle positioning.
and not some kind of specific SPC feature (therefore〓not rotating〓with the planet)?
≪アントニオ シダダオ ポルトガル≫
[Antonio Cidadao Oeiras - Portugal]
[Mark Lonsdale : [Canberra,Australia]
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