equatorial system

equatorial system

[‚e·kwə′tȯr·ē·əl ′sis·təm]
(astronomy)
A set of celestial coordinates based on the celestial equator as the primary great circle; usually declination and hour angle or sidereal hour angle. Also known as celestial equator system of coordinates; equinoctial system of coordinates.

equatorial system

equatorial systemclick for a larger image
A set of celestial coordinates based on the celestial equator as the primary great circle. It is usually expressed as declination and an hour angle or a sidereal hour angle. Also called an equinoctial system of coordinates or a celestial equator system of coordinates. See also celestial equator.
References in periodicals archive ?
As with any German equatorial system assembling the telescope components has to be carried out with some forethought.
I just wish the option of such a friendly German equatorial system had been available to me in 1997 when I first decided to go down the Schmidt-Cassegrain observatory route, after almost a quarter of a century of battling with Newtonians and neck-twisting eyepiece positions.
This more practical equatorial system corresponded to the apparent rotation of the heavens as seen from Earth, and it could be used with greater ease with equatorially mounted telescopes.