Obs. : 2014-06-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.899e+11
Venus      3.872e+11
Earth      3.740e+11
Mars       3.536e+11
Jupiter    3.905e+11
Saturn     3.577e+11
Uranus     3.898e+11
Neptune    4.004e+11
Pluto      3.876e+11