Obs. : 2012-08-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.521e+11
Venus      4.499e+11
Earth      3.899e+11
Mars       3.916e+11
Jupiter    4.473e+11
Saturn     3.916e+11
Uranus     4.245e+11
Neptune    3.968e+11
Pluto      3.855e+11