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 setting sun is reflected from the windows of the alms-house as brightly as from the rich man’s abode; the snow melts before its door as early in the spring. I do not see but a quiet mind may live as contentedly there, and have as cheering thoughts, as in a palace.”
—Henry David Thoreau (1817–1862)
“The whole force of the respectable circles to which I belonged, that respectable circle which knew as I did not the value of security won, the slender chance of replacing it if lost or abandoned, was against me ...”
—Ida M. Tarbell (1857–1944)