Obs. : 2019-07-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.381e+11
Venus      3.381e+11
Earth      3.503e+11
Mars       3.421e+11
Jupiter    3.566e+11
Saturn     3.503e+11
Uranus     3.347e+11
Neptune    3.376e+11
Pluto      3.503e+11