declination is what we call for the celestial coordinate that is similar to the earths longitude coordinate.
declination is what we call for the celestial coordinate that is similar to the earths longitude coordinate.
what do we call the celestial coordinate that is similar to the earths longitude coordinate?
declination
from these bases, directions toward objects in the sky can be quantified by constructing celestial coordinate systems. similar to geographic longitude and latitude, the equatorial coordinate system specifies positions relative to the celestial equator and celestial poles, using right ascension and declination. the ecliptic coordinate system specifies positions relative to the ecliptic (earth's orbit), using ecliptic longitude and latitude. besides the equatorial and ecliptic systems, some other celestial coordinate systems, like the galactic coordinate system, are more appropriate for particular purposes.









































section::::history.
celestial sphere
section::::conversion between celestial coordinate systems.









































section::::conversion between celestial coordinate systems.:converting cartesian vectors.









































section::::conversion between celestial coordinate systems.:converting cartesian vectors.:conversion from equatorial coordinates to ecliptic coordinates.









































where is the obliquity of the ecliptic.









































section::::see also.









































bullet::::- celestial coordinate system









































bullet::::- ecliptic









































bullet::::- ecliptic pole, where the ecliptic latitude is ±90°









































bullet::::- equinox









































bullet::::- equinox (celestial coordinates)









































bullet::::- march equinox









































section::::external links.









































bullet::::- the ecliptic: the sun's annual path on the celestial sphere durham university department of physics









































bullet::::- equatorial ↔ ecliptic coordinate converter









































bullet::::- measuring the sky a quick guide to the celestial sphere james b. kaler, university of illinois
ecliptic coordinate system