Obs. : 2015-03-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.378e+11
Venus      3.633e+11
Earth      3.768e+11
Mars       3.576e+11
Jupiter    3.769e+11
Saturn     3.659e+11
Uranus     3.633e+11
Neptune    3.461e+11
Pluto      3.406e+11