Obs. : 2020-05-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.321e+08
Venus      6.321e+08
Earth      6.401e+08
Mars       5.932e+08
Jupiter    6.082e+08
Saturn     6.082e+08
Uranus     6.196e+08
Neptune    5.972e+08
Pluto      6.082e+08