Obs. : 2015-12-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.420e+11
Venus      4.590e+11
Earth      4.421e+11
Mars       4.487e+11
Jupiter    4.435e+11
Saturn     4.605e+11
Uranus     4.324e+11
Neptune    4.268e+11
Pluto      4.508e+11