Obs. : 2015-01-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.809e+11
Venus      3.811e+11
Earth      3.538e+11
Mars       3.807e+11
Jupiter    3.465e+11
Saturn     3.421e+11
Uranus     3.752e+11
Neptune    3.811e+11
Pluto      3.649e+11