Obs. : 2020-11-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.903e+08
Venus      6.914e+08
Earth      6.753e+08
Mars       6.721e+08
Jupiter    6.843e+08
Saturn     6.843e+08
Uranus     6.756e+08
Neptune    6.739e+08
Pluto      6.843e+08