Definition
Declination is the angular distance of a point north (+) or south (−) of the celestial equator, analogous to geographic latitude. The Sun's declination ranges from +23.44° at June solstice to −23.44° at December solstice.
Declination
Equatorial coordinate — angular distance north or south of the celestial equator.
3D illustration
Declination measures angular distance from the celestial equator.
Use the menu and time controls to explore. Based on Jean Meeus' Astronomical Algorithms.