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:

    The trees stand in the setting sun,
    I in their freckled shade
    Regard the cavalcade of sin,
    Remorse for foolish action done,
    That pass like ghosts regardless, in
    A human image made....
    Philip Larkin (1922–1986)

    The [Loyal] legion has taken the place of the club—the famous Cincinnati Literary Club—in my affections.... The military circles are interested in the same things with myself, and so we endure, if not enjoy, each other.
    Rutherford Birchard Hayes (1822–1893)