Mars & Global Dust Storm on July 2, 2018
This morning I was provided with a very stable atmosphere and I could push the magnification
up higher-than-usual on Mars. That was the good news. Not so great was the muted,
washed-out appearance of Mars thanks to the current dust storm that has encircled the planet.
The Red 25 and Telvue Mars B filters were nearly worthless showing only a unicolored
yellow-orange planet. What subtle markings that I could make out were best in the Green 58
and the Blue 80A filters, which indicates to me that the darkened-patches that I was barely
making out might be thickened areas of atmospheric dust or the shadows caused by them
and not actual surface markings. The South Polar Cap (south is up in the drawing) was
streaked and darkened by the dust.