Obs. : 2017-06-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.660e+11
Venus      3.694e+11
Earth      3.776e+11
Mars       3.639e+11
Jupiter    3.794e+11
Saturn     3.753e+11
Uranus     3.694e+11
Neptune    3.665e+11
Pluto      3.738e+11