Accomplishing the same goals as the modern "GO-TO" systems with less cost, mass, and complication, the Lumicon NGC Sky Vector System for the Celestron C14 Telescope is a classic and highly-effective telescope digital guidance system. It works on altazimuth and fork-type (but not German-type) equatorial systems, is supremely simple to get started, and provides continuous, real-time digital readouts of your right ascension and declination coordinates.
With the NGC Sky Vector, a telescope's motor drive is superfluous; leave the telescope mount in its manual mode if applicable, and simply guide your scope by hand to where your NGC Sky Vector computer tells you to go. To those enamored by modern "GO-TO" system mounts it may seem quaint, but Sky Vector's actually much quicker, terribly quiet, and far from an obnoxious battery hog like so many of the GO-TO mounts. One small, easily-exchanged 9-volt alkaline is all you need. For purely observing the night sky (as opposed to doing long-exposure imaging), there's no better system.
The sophisticated tracking system in the NGC Sky Vector incorporates a 12,000-object database on a simple scrolling-text 16-digit red LED display which is highly conducive to your eye's night vision. It can also be integrated with personal computers for display of celestial object coordinates with the purchase of an optional cable.
Getting NGC Sky Vector to know where you are on the earth is a breeze; just aim your telescope at two bright stars and, using a triangulation method programmed in to its computer, it will calculate the rest. Once aligned, just tell it where you want to go; the computer's LED readout will let you know how much to elevate, descend, or rotate your mount. When all the directional movements reach zero, just peep in the eyepiece. NGC Sky Vector's computer is so small and light, at just 1/2 a pound, that you can mount it next to your eyepiece.
The NGC Sky Vector System also permits identification of unknown sky objects via a unique "IDENTIFY" button. Simply center the mystery object in the eyepiece, press the button, and the Lumicon Sky System will tell you what you're looking at.