Obs. : 2012-09-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.944e+11
Venus      4.217e+11
Earth      4.778e+11
Mars       4.200e+11
Jupiter    4.692e+11
Saturn     3.986e+11
Uranus     4.748e+11
Neptune    4.682e+11
Pluto      4.490e+11