λ=236゚Ls, (ω=256°W, φ=20°S), δ=23.4", ι=19°
Note:
Somewhat cool... temps in the 70's. No wind, poor
transparency (3 out of 10), moderate to heavy dew. Very, very steady
seeing.
Used 680x (12mm erfle + 2.4x barlow). Overwhelming amount of
detail, especially in Syrtis Major, Mare Tyrrhenum and Mare Cimmerium.
Mare Hadracum, around Hellas, was loaded with detail, with faint twists
and lines. Around the edges of Syrtis Major, there was much detail. The
notch between SM and Syrtis Minor was very clear and easy, with a faint
extention that almost completed the north-south connection on the
preceding side. Hesperia, the gap between MT and MC showed some very
faint markings that were difficult to render on the drawing. Mare
Cimmerium also showed much detail and many features, especially on the
south end. Only a bit of North Polar Hood action, didn't appear to see
any other atmospheric activity. 20-inch (TJ) stopped down to 17-inches.
First break in weather in about two weeks.
43cm f /7.8 reflector,480-680x
Bowie, MD USA.