Obs. : 2020-05-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.382e+08
Venus      6.363e+08
Earth      6.256e+08
Mars       6.232e+08
Jupiter    6.210e+08
Saturn     6.226e+08
Uranus     6.401e+08
Neptune    6.314e+08
Pluto      6.210e+08