Setting Circles

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:

    should some limb of the devil
    Destroy the view by cutting down an ash
    That shades the road, or setting up a cottage
    Planned in a government office, shorten his life,
    Manacle his soul upon the Red Sea bottom.
    William Butler Yeats (1865–1939)

    By the power elite, we refer to those political, economic, and military circles which as an intricate set of overlapping cliques share decisions having at least national consequences. In so far as national events are decided, the power elite are those who decide them.
    C. Wright Mills (1916–1962)