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Mars Image 2022/09/19(UT)
Antonio Cidadao,Gerald Stelmack,Mark Lonsdale,Niall MacNeill,Johan Warell
A.Cidadao,G.Stelmack,M.Lonsdale,N.MacNeill,J.Warell
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解説（安達）/ Comment by Makoto Adachi
Dear sirs,here are two Mars images obtained this morning with average seeing a low transparency.
Syrtis Major and Hellas are well placed,Zea L. is seen and NPH is visible. Northern Hellas is bright.
≪アントニオ シダダオ ポルトガル≫
[Antonio Cidadao Oeiras - Portugal]
[G.Stelmack : Canada]
[Mark Lonsdale : [Canberra,Australia]
I imaged Mars in RGB and IR 642nm BP the 19th of September. The seeing was quite challenging given the low altitude (35 degrees). I derotated the IR 642nm BP to the same time stamp as the RGB image and used it as a Luminance channel.I found a 30% inclusion gave a strong lift to the definition,with a minimal effect on the overall colour.
Solis Lacus and the Vallis Marineris are clearly visible towards the terminator. The ruddy peak of Olympus Mons is also visible on the f limb. Although the resolution is not good enough to make out the Tharsis Montes,more centrally,there are clearly bright clouds over the position of Arsia Mons.
[Niall MacNeill : Wattle Flat,NSW,Australia]
[Johan Warell:Lindby:Sweden]
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