Module astro::planet::earth

The Earth

Functions

angl_betwn_diurnal_path_and_hz	Computes the angle between diurnal path and the horizon
approx_geodesic_dist	Computes a low accuracy geodesic distance between two points on the Earth's surface | in kilometers
ecc_of_meridian	Returns the eccentricity of the Earth's meridian
eq_rad	Returns the equatorial radius of the Earth | in kilometers
equation_of_time	Computes the equation of time | in radians
flat_fac	Returns the flattening factor of the Earth
geodesic_dist	Computes a high accuracy geodesic distance between two points on the Earth's surface | in kilometers
geograph_geocent_lat_diff	Computes the difference between the geographic latitude and geocentric latitude
linear_velocity_at_lat	Computes the linear velocity of a point at a latitude
pol_rad	Returns the polar radius of the Earth | in kilometers
rad_curv_of_meridian	Computes the radius of curvature of the Earth's meridian at a latitude
rad_of_parll_lat	Computes the radius of the parallel of a latitude
rho	Computes the distance from the Earth's center to a point on the ellipsoid
rho_sin_cos_phi	Computes two quantities that are used elsewhere in the library
rot_angular_velocity	Returns the rotational angular velocity of the Earth | in radian per second