Choosing A Telescope
Telescope Aperture Considerations
Introduction to Planetary Sketching
Refractor Dobsonian Style Mounts
The Bonds: Pioneers of American Astronomy
Saturn's Encke Minima and Encke Division
Nature and Travel Photography
Recommended Astronomy Books
September 3rd, 1988, 6:15 - 6:50 UT, seeing 5 (0 worst, 10 best), transparency 4. Central Meridian 138.89 - 147.42 degrees. Diameter of Mars: 22.3".
Astro-Physics 7" f/9 refractor on an Astro-Physics 706 German equatorial mount. Magnification 202x - 234x. 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 South Polar Cap appears smaller in size since my last observation, and is offset towards the preceding limb. Mare Cimmerium, Aeolis, Electris, Eridania, and Mare Chronium are prominent.