| 摘要 |
A precision equatorial mounting unit and drive system for an astronomical telescope is provided which is constructed so that the mounting, per se, is modular and may be easily and quickly converted to a German equatorial platform for mounting different sizes and types of telescopes, or to a fork mount likewise for different sizes and types of telescopes. The drive system includes a worm gear sector drive to provide a highly accurate sidereal tracking system in a minimum of space. The mounting unit includes a built-in adjustable timer with a calibrated scale, and an automatic cut-off; the unit also includes a precision latitude adjustment and associated plumb bob scale which may be calibrated directly in latitude.
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