Obs. : 2019-07-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.449e+11
Venus      3.466e+11
Earth      3.486e+11
Mars       3.464e+11
Jupiter    3.502e+11
Saturn     3.464e+11
Uranus     3.444e+11
Neptune    3.409e+11
Pluto      3.460e+11