Obs. : 2019-01-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.562e+11
Venus      3.410e+11
Earth      3.472e+11
Mars       3.565e+11
Jupiter    3.430e+11
Saturn     3.562e+11
Uranus     3.506e+11
Neptune    3.620e+11
Pluto      3.562e+11