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Mars Image 2023/03/17(UT)
Mike Wolle,Frank J Melillo,Vincenzo della Vecchia,Mark Lonsdale,Antonio Cidadao,Chris Nuttall
M.Wolle,F.Melillo,V.della Vecchia,M.Lonsdale,A.Cidadao,C.Nuttall
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Click the link below to open the Comment（PDF File） by Makoto Adachi on a new page.
解説（安達）/ Comment by Makoto Adachi
[Mike Wolle : Austria ]
[Frank J Melillo Holtsville NY U.S.A]
[Vincenzo della Vecchia : [Aversa,Italy]
[Mark Lonsdale : [Canberra,Australia]
Seeing was above average, but intervening clouds cut the session short. Used on Mars the filter pair I got for CH4 727 band imaging (Edmund, 10nm passband, 750nm and 730nm center band). Already used them for Jupiter, and also made a first attempt on Uranus (will share shortly) . These have the same focus point (parfocal in my system), are used with the same camera settings, and give similar peak intensities with Galilean satellites and Mars. On Jupiter, the 730/10nm filter gives rise to an about 70% peak intensity, when compared with the 750/10nm, and on Uranus (until now only two independent captures with each filter) it results in a 1/10 lower peak intensity.
≪アントニオ シダダオ ポルトガル≫
[Antonio Cidadao Oeiras - Portugal]
A Mars drawing stolen from between the clouds.
The NPC appeared as a uniform bright white line.
There was a bright white cloud at the evening limb on the equator, and a little band stretching northwards along the limb towards the cap.
Syrtis Major was difficult to see near to the morning terminator; its Northern tip was darker and more obvious than its central part, and at times I suspected dull cloud obscuring it, but it was hard to tell in the gloom on the dawn side of the disc.
The South of the disc appeared to be covered by a fairly uniform hood, dull, but brighter on the evening side, with a soft and regular northern edge.
[Chris Nuttall : York,UK]
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