Obs. : 2013-05-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.534e+11
Venus      4.534e+11
Earth      4.397e+11
Mars       4.620e+11
Jupiter    4.441e+11
Saturn     4.443e+11
Uranus     4.811e+11
Neptune    4.721e+11
Pluto      4.433e+11