Obs. : 2013-03-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.881e+11
Venus      3.881e+11
Earth      4.446e+11
Mars       3.905e+11
Jupiter    3.959e+11
Saturn     4.250e+11
Uranus     3.912e+11
Neptune    3.895e+11
Pluto      3.948e+11