Obs. : 2013-05-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.244e+11
Venus      4.175e+11
Earth      4.381e+11
Mars       4.244e+11
Jupiter    4.103e+11
Saturn     4.274e+11
Uranus     4.421e+11
Neptune    4.511e+11
Pluto      4.452e+11