Obs. : 2019-01-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.482e+11
Venus      3.355e+11
Earth      3.449e+11
Mars       3.546e+11
Jupiter    3.376e+11
Saturn     3.482e+11
Uranus     3.489e+11
Neptune    3.573e+11
Pluto      3.482e+11