Obs. : 2018-09-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.765e+11
Venus      3.806e+11
Earth      3.879e+11
Mars       3.868e+11
Jupiter    3.848e+11
Saturn     3.871e+11
Uranus     3.903e+11
Neptune    3.858e+11
Pluto      3.868e+11