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
Comet S4 1999 LINEAR, July 8, 2000
Comet S4 1999 LINEAR, July 8, 2000, 7:20-7:30 UT, seeing 5, transparency 4.8.
Astro-Physics 7.1" f/9 EDT refractor on homemade Dobsonian-style mount. Magnification 60x-180x.
Pseudo-nucleus appeared elongated. Tail length slightly less then 1/2 degree.