Examples for

Celestial Navigation

Celestial navigation has traditionally been used by mariners to navigate their ships by the stars. Coordinates such as right ascension and declination along with hour angles of astronomical bodies measured with respect to sky meridians are the primary tools used. Navigate the skies using a variety of hour angles and coordinates with Wolfram|Alpha.

Query for coordinates and hour angles of astronomical bodies.

Find your way by celestial navigation:

Sun right ascension and declination

local hour angle of Mars

Rigel Greenwich hour angle

M31 sidereal hour angle

More examples