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.
Other articles related to "setting circles, setting circle":
... Setting circles are angular measurement scales that can be placed on the two main rotation axes of some telescopes ... Since the widespread adoption of digital setting circles, any classical engraved setting circle is now specifically identified as an "analog setting circle" (ASC) ... in equatorial coordinates), the telescope user can use the setting circle to align the telescope in the appropriate direction before looking through its eyepiece ...
... Digital setting circles (DSC) consist of two rotary encoders on both axis of the telescope mount and a digital readout ...
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