Obs. : 2019-01-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.518e+11
Venus      3.429e+11
Earth      3.500e+11
Mars       3.478e+11
Jupiter    3.429e+11
Saturn     3.469e+11
Uranus     3.493e+11
Neptune    3.526e+11
Pluto      3.469e+11