I made another sketch of Mars yesterday morning which ended up being the same central meridian as my sketch on July 2nd. How that happened was because the seeing wasn't as good yesterday as it had been the morning before. I started observing at 0730 UT (3:30 am local) but the seeing didn't settle to my liking until 1000 UT. By then the Sun was up and the CM was the same as before.
The drawing is the view I got with my magenta filter. And yes, the sky was blue by then. I am definitely seeing a rift in the South Polar Cap. I used 2B and HB pencils, a loaded stump, and color pencil dust again.
I was out again this morning--that's three days in a row (!)--and had a different view, Mare Sirenum, on the CM but didn't sketch because I had to leave the observatory to go up and try to see the comet. I saw that dusky rift in the SPC again and there was a bluish haze on the northern limb.
Edited by Special Ed, 04 July 2020 - 03:48 PM.