Obs. : 2016-10-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.816e+11
Venus      3.835e+11
Earth      3.980e+11
Mars       4.061e+11
Jupiter    3.816e+11
Saturn     3.874e+11
Uranus     4.004e+11
Neptune    4.121e+11
Pluto      4.061e+11