Digital Setting Circles
Digital setting circles (DSC) consist of two rotary encoders on both axis of the telescope mount and a digital readout. They give a highly accurate readout of where the telescope is pointed and their lit display makes them easier to read in the dark. They have also been combined with microcomputers to give the observer a large database of celestial objects and even guide the observer in correctly pointing their telescope.
In contrast to a GOTO telescope mount, a mount equipped with DSC alone is sometimes called a "PUSH TO" mount.
Read more about this topic: Setting Circles
Famous quotes containing the words setting and/or circles:
“We believe that Carlyle has, after all, more readers, and is better known to-day for this very originality of style, and that posterity will have reason to thank him for emancipating the language, in some measure, from the fetters which a merely conservative, aimless, and pedantic literary class had imposed upon it, and setting an example of greater freedom and naturalness.”
—Henry David Thoreau (1817–1862)
“And why do you cry, my dear, why do you cry?
It is all in the whirling circles of time.
If millions are born millions must die,”
—Robinson Jeffers (1887–1962)