Obs. : 2013-08-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.323e+11
Venus      3.495e+11
Earth      3.615e+11
Mars       3.356e+11
Jupiter    3.484e+11
Saturn     3.660e+11
Uranus     3.640e+11
Neptune    3.737e+11
Pluto      3.587e+11