Obs. : 2020-05-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.332e+08
Venus      6.276e+08
Earth      6.227e+08
Mars       6.174e+08
Jupiter    6.162e+08
Saturn     6.170e+08
Uranus     6.378e+08
Neptune    6.236e+08
Pluto      6.162e+08