Obs. : 2013-04-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.936e+11
Venus      4.976e+11
Earth      4.085e+11
Mars       4.973e+11
Jupiter    4.810e+11
Saturn     4.111e+11
Uranus     4.936e+11
Neptune    4.527e+11
Pluto      4.129e+11