Obs. : 2019-07-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.332e+11
Venus      3.315e+11
Earth      3.498e+11
Mars       3.338e+11
Jupiter    3.564e+11
Saturn     3.515e+11
Uranus     3.419e+11
Neptune    3.440e+11
Pluto      3.515e+11