Obs. : 2018-11-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.337e+11
Venus      3.300e+11
Earth      3.371e+11
Mars       3.374e+11
Jupiter    3.337e+11
Saturn     3.395e+11
Uranus     3.362e+11
Neptune    3.374e+11
Pluto      3.405e+11