Obs. : 2019-08-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.334e+11
Venus      3.311e+11
Earth      3.480e+11
Mars       3.311e+11
Jupiter    3.399e+11
Saturn     3.404e+11
Uranus     3.527e+11
Neptune    3.480e+11
Pluto      3.421e+11