Obs. : 2010-05-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.783e+11
Venus      3.820e+11
Earth      3.693e+11
Mars       3.857e+11
Jupiter    3.662e+11
Saturn     3.841e+11
Uranus     3.736e+11
Neptune    3.569e+11
Pluto      3.658e+11