August 20th, 1988, 6:02 - 6:45 UT, seeing 5 (0 worst, 10 best), transparency 5. Central Meridian 305.51 - 315.99 degrees. Diameter of Mars: Diameter: 20.3".

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.

Syrtis Major, Mare Tyrrhenum, Hellespontus, Mare Australe, and Hellas well defined. The South Polar cap appears smaller since last observation.