Obs. : 2011-04-02
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.685e+11
Venus      3.737e+11
Earth      4.294e+11
Mars       3.658e+11
Jupiter    3.685e+11
Saturn     4.266e+11
Uranus     3.658e+11
Neptune    3.737e+11
Pluto      3.984e+11