Obs. : 2015-06-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.677e+11
Venus      4.115e+11
Earth      4.884e+11
Mars       4.600e+11
Jupiter    4.115e+11
Saturn     4.758e+11
Uranus     4.866e+11
Neptune    5.000e+11
Pluto      5.087e+11