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August 13th, 1988, 6:55 - 7:25 UT, seeing 7 (0 worst, 10 best), transparency 5. Central Meridian 23.1 - 30.41 degrees. Diameter of Mars: Diameter: 19.10".

Astro-Physics 7" f/9 refractor on an Astro-Physics 706 German equatorial mount. Magnification 202x - 243x. Filters used include Yellow (W12), Orange (W23), light Red (W23A), Red (W25) Magenta (W30), Green (W58), Blue (W80A), and Violet (W47).

South is at the top, north at the bottom, preceding on the left, and following on the right.

The rift in the South Polar Cap is very noticeable, as is the surrounding melt ring. Also Meridiani Sinus, Margaritifer Sinus, Mare Erythraeum, Mare Acidalium, and Chryse are prominent.