Obs. : 2014-05-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.047e+11
Venus      4.007e+11
Earth      3.799e+11
Mars       3.800e+11
Jupiter    4.053e+11
Saturn     3.788e+11
Uranus     4.012e+11
Neptune    3.990e+11
Pluto      3.845e+11