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 26, 1987, 6:15 - 6:35 UT, seeing 3-4 (0 worst, 5 best), transparency 6. System I Central Meridian 359.3°, System II Central Meridian 320.0°.
Astro-Physics 6" f/9 refractor on Byers 58 equatorial mount. Magnification 114x.
South is at the top of this sketch, following is on the right hand side, north is at the bottom of the sketch, and preceding is on the left hand side.
The South Polar Region appeared light green in color. The South Temperate Belt (STB) was not visible. The South South Temperate Belt (SSTB) had an elongated dark condensation in it. Io, which had been casting a shadow on Jupiter during a transit, became visible as it neared the preceding limb of the planet on the edge of the South Equatorial Zone. The SEB appeared light brown in color.
The North Equatorial Belt (NEB) appeared light brown in color. It had a small white oval near the following edge, and an elongated oval along the NEB south (NEBs), with a festoon that extended to the SEB north. Along the preceding edge there was an elongated oval along the NEBs. The North Temperate Belt had a festoon along its southern edge that extended off the preceding or left limb. The North Polar Region appeared light green in color.