Obs. : 2015-09-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.365e+11
Venus      4.371e+11
Earth      4.260e+11
Mars       4.373e+11
Jupiter    4.373e+11
Saturn     4.346e+11
Uranus     4.179e+11
Neptune    4.366e+11
Pluto      4.313e+11