Obs. : 2015-08-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.202e+11
Venus      4.255e+11
Earth      4.506e+11
Mars       4.114e+11
Jupiter    4.255e+11
Saturn     4.475e+11
Uranus     4.181e+11
Neptune    4.417e+11
Pluto      4.506e+11