Obs. : 2017-03-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.750e+11
Venus      3.691e+11
Earth      3.714e+11
Mars       3.748e+11
Jupiter    3.741e+11
Saturn     3.679e+11
Uranus     3.719e+11
Neptune    3.686e+11
Pluto      3.662e+11