Obs. : 2012-09-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.895e+11
Venus      4.480e+11
Earth      4.439e+11
Mars       3.814e+11
Jupiter    4.665e+11
Saturn     3.802e+11
Uranus     4.439e+11
Neptune    4.243e+11
Pluto      3.895e+11