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Mars continues to retrograde in Gemini south of the twin stars Castor
and Pollux, now beginning to make a sharper triangle with the celestial
brothers. Mars is dimming somewhat, now shining at magnitude -1.27
and having a diameter of 14.3" arcseconds. Unannotated image, Gemini star names.
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Two days before this image was taken, and also
two days afterward, I observed Mars with my C8
and made these crude sketches in PowerPoint of
the planet at varying magnifications:
In both cases, the prominent feature near Mars meridian was Syrtis Major; the north polar cap was of course nicely visible, but on the 24th, I also noticed a small darker area surrounding the polar cap, and also that the southern limb region was more lightly colored. I also reduced the color contrast between dark and light areas to more closely match what eye see ~ what I see in the eyepiece is not nearly as distinct as pictures or drawings depict. |