Obs. : 2017-08-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.773e+11
Venus      3.916e+11
Earth      3.735e+11
Mars       3.773e+11
Jupiter    3.666e+11
Saturn     3.690e+11
Uranus     3.927e+11
Neptune    3.735e+11
Pluto      3.588e+11