Obs. : 2016-08-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.841e+11
Venus      3.841e+11
Earth      4.176e+11
Mars       4.222e+11
Jupiter    3.943e+11
Saturn     4.222e+11
Uranus     3.951e+11
Neptune    4.044e+11
Pluto      4.196e+11