Obs. : 2018-08-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.457e+11
Venus      3.434e+11
Earth      3.451e+11
Mars       3.422e+11
Jupiter    3.442e+11
Saturn     3.425e+11
Uranus     3.497e+11
Neptune    3.435e+11
Pluto      3.426e+11