Obs. : 2016-05-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.153e+11
Venus      4.145e+11
Earth      4.103e+11
Mars       4.103e+11
Jupiter    4.035e+11
Saturn     4.103e+11
Uranus     4.089e+11
Neptune    4.107e+11
Pluto      4.147e+11