Obs. : 2015-03-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.694e+11
Venus      4.801e+11
Earth      4.560e+11
Mars       4.729e+11
Jupiter    4.406e+11
Saturn     4.863e+11
Uranus     4.729e+11
Neptune    4.694e+11
Pluto      4.778e+11