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
October 17, 1987, 0:15 - 0:40 UT, seeing 3 - 4 (0 worst, 5 best), transparency 5. System I Central Meridian 260.7°, System II Central Meridian 62.6°.
Astro-Physics 6" f/9 refractor on Byers 58 equatorial mount. Magnification 172x.
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 Great Red Spot (GRS) showed some detail inside of it and was visible along the South Equatorial Belt (SEB). Preceding the GRS was a rift. A rift was visible also below the GRS. Following the GRS was a triangular shaped feature.
A rift was visible along the northern edge of the South Equatorial Belt south (SEBs), as was a large elongated white oval and small dark condensation. The Equatorial Zone appeared shaded or veiled from the large elongated white oval to the preceding limb of the planet.
Both the NEB and SEB appeared brown or burnt umber in color.
In the North Polar Region appeared green gray in color and five dark condensations or spots were visible in it.