Obs. : 2020-03-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.485e+08
Venus      6.048e+08
Earth      6.258e+08
Mars       6.333e+08
Jupiter    6.333e+08
Saturn     6.333e+08
Uranus     6.182e+08
Neptune    6.510e+08
Pluto      6.333e+08