Obs. : 2016-09-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.340e+11
Venus      4.321e+11
Earth      4.303e+11
Mars       4.236e+11
Jupiter    4.340e+11
Saturn     4.230e+11
Uranus     4.291e+11
Neptune    4.361e+11
Pluto      4.262e+11