Obs. : 2015-09-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.215e+11
Venus      4.309e+11
Earth      4.404e+11
Mars       4.309e+11
Jupiter    4.286e+11
Saturn     4.341e+11
Uranus     4.404e+11
Neptune    4.502e+11
Pluto      4.423e+11