I could not tell what these grey spots were, but they were sprinkled all over the area and gave me the impression of rubble.
ERRORS IN VIRTUAL MOON ATLAS SOFTWARE
There were some small objects on the crater floor that I could not see at the eyepiece that were visible on the software image and other grey spots that showed up across the upper left portion of the crater floor in my view that were not visible in the software image. Looking at the view of this crater on the Virtual Moon Atlas at about 50% of the zoom range, the resolution of my view in the scope was not quite as good as the image in the software, but the distinction in the grey tones in my view was better. It did, however, provide a reasonable view with good contrast. The view, with the ES 52 3mm eyepiece was not completely sharp, as I expected, with this scope, my vision, at its 250X magnification, in the atmospheric conditions. The Moon's terminator was running near the Deslandres Walled Plain, which caught my attention. The mount used is a CG4 with the Celestron 6 volt drive system installed.
I have not done a star test on the optics to my satisfaction yet, but I believe its wave front error to be about one sixth wave as a rough estimate. The scope, a Meade LX 86 6R optical tube has a 35% central obstruction, as close as I can measure.
The there had been quite a bit of melting and evaporation of water during the day and some of this was visible as a haze nearer the horizon. Weather was warmer, I experienced small scale turbulence that was apparent in the Moon's image and i believe there was a bit of high haze or fog. I viewed the Moon around 9 to 10 PM on Feb 19th. I managed to carry my six inch f/5 reflector through maybe ten inches of snow from my outbuilding, through the house and onto a space I had cleared on my driveway.
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