Obs. : 2012-08-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.012e+11
Venus      4.316e+11
Earth      4.258e+11
Mars       3.881e+11
Jupiter    4.336e+11
Saturn     3.881e+11
Uranus     4.324e+11
Neptune    4.306e+11
Pluto      4.194e+11