Obs. : 2018-08-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.346e+11
Venus      3.528e+11
Earth      3.412e+11
Mars       3.412e+11
Jupiter    3.538e+11
Saturn     3.449e+11
Uranus     3.306e+11
Neptune    3.337e+11
Pluto      3.425e+11