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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
equatorial system
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.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive
The solution in study corresponds to a dual-axis
equatorial system (Figure 2), whose revolute axis of the daily motion is fixed and parallel with the polar axis.
As with any German
equatorial system assembling the telescope components has to be carried out with some forethought.
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.
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