Obs. : 2020-05-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.447e+08
Venus      6.356e+08
Earth      6.203e+08
Mars       6.063e+08
Jupiter    6.073e+08
Saturn     6.073e+08
Uranus     6.365e+08
Neptune    6.094e+08
Pluto      6.073e+08