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 25th, 2005, 6:50 - 7:15 UT, seeing varied from fair to good (5-7, with 10 being best), transparency 5.4. Central Meridian 279.33° degrees. Diameter: 17.07", phase: 0.92%, magnitude: -1.53.
TMB 7" f/8 refractor on Astro-Physics 800 mount. Magnification 298x - 476x with Baader binoviewer. Filters used: Baader Red, Moon & Skyglow. The Moon & Skyglow filter is similar to a Magenta (W30, W32) filter in that it enhances both the surface and atmospheric detail.
The South Polar Cap (SPC) was appeared smaller than the last time I observed Mars and was offset to the following limb (right hand side of sketch). Limb clouds were visible along the following limb also.
Syrtis Major was prominent near the center of the globe, with Mare Serpentis, Sinus Sabaeus near the following limb. The desert area following Syrtis Major appeared darker in tone than the desert area preceding it. Hellas was prominent also, and its southern portion appeared darker than the northern portion did. Near Hellas Yaonis Regio, and Mare Hadriacum were visible, as were Syrtis Minor, Mare Tyrrhenum, Tritonis Sinus, Ausonia, and Hesperia.
In the northern portion of the globe the North Polar Hood clouds were prominent and had a light blue color. There appeared to be a small darker portion or break in the clouds.