planets.f90 File Reference

(libTheSky version 0.4.3, revision 299, hash 71a3740, 2025-03-02)

Procedures to compute planet positions and more for libTheSky. More...

Go to the source code of this file.

Modules
module	thesky_planets
	Procedures for planets.

Functions/Subroutines
subroutine	thesky_planets::planet_position (jd, pl, lat, lon, hgt, lbaccur, raccur, ltime, aber, to_fk5, assume_jde, lunar_theory, nutat, magmdl, verbosity)
	Compute the position, distance, etc of a planet.
subroutine	thesky_planets::plutolbr (t, l, b, r)
	Calculate Pluto's position l,b,r at time t.
subroutine	thesky_planets::planetelements (jd)
	Calculate orbital elements for the planets.
real(double) function	thesky_planets::planet_magnitude (pl, hc_dist, gc_dist, phang, model)
	Calculate planet magnitude.
real(double) function	thesky_planets::satmagn (t, gl, gb, d, l, b, r, magmdl)
	Calculate Saturn's magnitude.
real(double) function	thesky_planets::dsatmagn (tjc, glon, glat)
	Calculate a correction to Saturn's magnitude due to its rings.
subroutine	thesky_planets::earthshadow (dm0, ds0, r1, r2)
	Calculate the umbra and penumbra geocentric radii of the Earth's shadow.
subroutine	thesky_planets::jupiterphys (jd, de, ds, omg1, omg2, dphase, pa, in, om)
	Compute physical data for Jupiter.
subroutine	thesky_planets::saturnphys (jd, be, bs, pa, in, om, ar, br, du, pa_s, ar_s, br_s)
	Compute physical data for Saturn.
subroutine	thesky_planets::planet_position_la (jd, pl, calc, nt, lat, lon)
	Compute low-accuracy planet positions. Sun and Moon have dedicated routines, for planets abridged VSOP87 is used.
real(double) function	thesky_planets::comet_scatter_magnitude_correction (phaseang)
	Correction for comet magnitude due to forward and backscattering.

Detailed Description

Procedures to compute planet positions and more for libTheSky.

Definition in file planets.f90.