Obs. : 2014-05-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.025e+11
Venus      3.813e+11
Earth      3.985e+11
Mars       4.235e+11
Jupiter    4.175e+11
Saturn     4.090e+11
Uranus     3.813e+11
Neptune    3.811e+11
Pluto      3.969e+11