declination circle

A setting circle on the declination axis that enables an equatorially mounted telescope to be set at the declination of the object to be observed. Its scales are graduated from 0°, when the telescope is aligned with the celestial equator, to ±90°, when it is aligned with the north or south poles.

declination circle

[‚dek·lə′nā·shən ‚sər·kəl] (engineering) For a telescope with an equatorial mounting, a setting circle attached to the declination axis that shows the declination to which the telescope is pointing.

单词	declination circle
释义	declination circle declination circle A setting circle on the declination axis that enables an equatorially mounted telescope to be set at the declination of the object to be observed. Its scales are graduated from 0°, when the telescope is aligned with the celestial equator, to ±90°, when it is aligned with the north or south poles. declination circle [‚dek·lə′nā·shən ‚sər·kəl] (engineering) For a telescope with an equatorial mounting, a setting circle attached to the declination axis that shows the declination to which the telescope is pointing.
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