Obs. : 2015-09-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.373e+11
Venus      4.305e+11
Earth      4.523e+11
Mars       4.305e+11
Jupiter    4.297e+11
Saturn     4.555e+11
Uranus     4.583e+11
Neptune    4.722e+11
Pluto      4.732e+11