hapsira.constants.general

Astronomical and physics constants.

This module complements constants defined in astropy.constants, with gravitational paremeters and radii.

Note that GM_jupiter and GM_neptune are both referred to the whole planetary system gravitational parameter.

Unless otherwise specified, gravitational and mass parameters were obtained from:

  • Luzum, Brian et al. “The IAU 2009 System of Astronomical Constants: The Report of the IAU Working Group on Numerical Standards for Fundamental Astronomy.” Celestial Mechanics and Dynamical Astronomy 110.4 (2011): 293–304. Crossref. Web. DOI: 10.1007/s10569-011-9352-4

radii were obtained from:

  • Archinal, B. A. et al. “Report of the IAU Working Group on Cartographic Coordinates and Rotational Elements: 2009.” Celestial Mechanics and Dynamical Astronomy 109.2 (2010): 101–135. Crossref. Web. DOI: 10.1007/s10569-010-9320-4

J2 for the Sun was obtained from:

Module Contents

hapsira.constants.general.M_earth
hapsira.constants.general.M_jupiter
hapsira.constants.general.M_sun
hapsira.constants.general.J2000_TT
hapsira.constants.general.J2000_TDB
hapsira.constants.general.J2000
hapsira.constants.general.GM_sun
hapsira.constants.general.GM_earth
hapsira.constants.general.GM_mercury
hapsira.constants.general.GM_venus
hapsira.constants.general.GM_mars
hapsira.constants.general.GM_jupiter
hapsira.constants.general.GM_saturn
hapsira.constants.general.GM_uranus
hapsira.constants.general.GM_neptune
hapsira.constants.general.GM_pluto
hapsira.constants.general.GM_moon
hapsira.constants.general.GM_phobos
hapsira.constants.general.GM_deimos
hapsira.constants.general.GM_europa
hapsira.constants.general.GM_ganymede
hapsira.constants.general.GM_enceladus
hapsira.constants.general.GM_titan
hapsira.constants.general.GM_titania
hapsira.constants.general.GM_triton
hapsira.constants.general.GM_charon
hapsira.constants.general.R_mean_earth
hapsira.constants.general.R_mean_mercury
hapsira.constants.general.R_mean_venus
hapsira.constants.general.R_mean_mars
hapsira.constants.general.R_mean_jupiter
hapsira.constants.general.R_mean_saturn
hapsira.constants.general.R_mean_uranus
hapsira.constants.general.R_mean_neptune
hapsira.constants.general.R_mean_pluto
hapsira.constants.general.R_mean_moon
hapsira.constants.general.R_sun
hapsira.constants.general.R_earth
hapsira.constants.general.R_mercury
hapsira.constants.general.R_venus
hapsira.constants.general.R_mars
hapsira.constants.general.R_jupiter
hapsira.constants.general.R_saturn
hapsira.constants.general.R_uranus
hapsira.constants.general.R_neptune
hapsira.constants.general.R_pluto
hapsira.constants.general.R_moon
hapsira.constants.general.R_polar_earth
hapsira.constants.general.R_polar_mercury
hapsira.constants.general.R_polar_venus
hapsira.constants.general.R_polar_mars
hapsira.constants.general.R_polar_jupiter
hapsira.constants.general.R_polar_saturn
hapsira.constants.general.R_polar_uranus
hapsira.constants.general.R_polar_neptune
hapsira.constants.general.R_polar_pluto
hapsira.constants.general.R_polar_moon
hapsira.constants.general.J2_sun
hapsira.constants.general.J2_earth
hapsira.constants.general.J3_earth
hapsira.constants.general.J2_mars
hapsira.constants.general.J3_mars
hapsira.constants.general.J2_venus
hapsira.constants.general.J3_venus
hapsira.constants.general.H0_earth
hapsira.constants.general.rho0_earth
hapsira.constants.general.Wdivc_sun