Presents information on aberrations, obstruction effects, and reflecting, refracting, and catadioptric objectives, and the eyepiece and eye.

Consists of two steps: aiming the eyepiece axis at the center of the primary, and aiming the primary at the center of the eyepiece.

A javaScript-driven calculator, which will compute the values of a number of paramaters for any telescope and eyepiece combinations entered.

Introduction, types of telescopes, mounts, accessories, maintenance, binoculars, and choosing binoculars.

Used to estimate the right ascension and declination of the continuous viewing zone.

Cross-reference data for Meade LX200 telescope users.

Information on refracting, reflecting and radio telescopes, details on amateur telescopes, eyepieces, mounts, lenses and software.

Accessory designs and information to enhance the SSE of Meade LX200s, Dobsonian reflectors, and other telescopes plus star charts for computerized telescopes.

Information for specific support given to users of the Meade ETX 70 Telescope and astrophotography with the LPI/DSI Imagers.

Basics, tips, and accessories with suggested reading and articles.