Obs. : 2018-10-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.239e+11
Venus      3.226e+11
Earth      3.321e+11
Mars       3.282e+11
Jupiter    3.260e+11
Saturn     3.283e+11
Uranus     3.321e+11
Neptune    3.284e+11
Pluto      3.280e+11