.. _moon: Moon ==== The parameters of the Lunar spheroid were obtained from [Wieczorek2015]_: .. doctest:: >>> from boule import MOON >>> print(MOON) Sphere(name='MOON', ...) >>> # Flattening (Note the Moon is a sphere) >>> print("{:.5f}".format(MOON.flattening)) 0.00000 >>> # Radius >>> print("{:.0f}".format(MOON.semimajor_axis)) 1737151 >>> # Geocentric gravitational constant (GM) >>> print("{:.7e}".format(MOON.geocentric_grav_const)) 4.9028001e+12 >>> # Angular velocity >>> print("{:.7e}".format(MOON.angular_velocity)) 2.6617073e-06