Setting circles are used on telescopes equipped with an equatorial mount to find astronomical objects in the sky by their equatorial coordinates often used in star charts or ephemeris.
Read more about Setting Circles: Description, Digital Setting Circles
Famous quotes containing the words setting and/or circles:
“The doctrine of those who have denied that certainty could be attained at all, has some agreement with my way of proceeding at the first setting out; but they end in being infinitely separated and opposed. For the holders of that doctrine assert simply that nothing can be known; I also assert that not much can be known in nature by the way which is now in use. But then they go on to destroy the authority of the senses and understanding; whereas I proceed to devise helps for the same.”
—Francis Bacon (1560–1626)
“There are some circles in America where it seems to be more socially acceptable to carry a hand-gun than a packet of cigarettes.”
—Katharine Whitehorn (b. 1926)