Obs. : 2020-11-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.642e+08
Venus      6.622e+08
Earth      6.730e+08
Mars       6.748e+08
Jupiter    6.714e+08
Saturn     6.714e+08
Uranus     6.730e+08
Neptune    6.753e+08
Pluto      6.714e+08