a grid system for locating things in the sky. It's anchored to the celestial poles and the celestial equator (directly above Earth's equator). Declination and right ascension are the celestial equivalents of latitude and longitude.
A way of describing the positions of the stars in the sky. The celestial coordinates RA and Dec note position along and off the ecliptic, respectively.
the grid system similar to latitude and longitude used to locate objects on the celestial sphere
The coordinate system used to describe the positions of celestial objects. Based on the Earth system of latitude and longitude, there are two components to an object's celestial coordinates, right ascension and declination.
see "right ascension and declination."
Pair of quantities-right ascension and declination-similar to longitude and latitude on Earth, used to pinpoint locations of objects on the celestial sphere.
Identical to earth coordinates except the x-axis passes through the longitude of vernal equinox rather than the prime meridian so that the celestial system is fixed relative to the stars. The transformation from celestial to terrestrial involves a single axis rotation about the z-axis, equivalent to a scalar shift in longitude. Satellite orbital predictions are typically made in a celestial system.
Pairs of numbers (right ascension and declination) used to locate celestial objects. They are similar to longitude and latitude on Earth.