Obs. : 2019-01-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.540e+11
Venus      3.411e+11
Earth      3.470e+11
Mars       3.484e+11
Jupiter    3.440e+11
Saturn     3.540e+11
Uranus     3.467e+11
Neptune    3.527e+11
Pluto      3.540e+11