Obs. : 2020-03-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.261e+08
Venus      5.889e+08
Earth      6.087e+08
Mars       6.143e+08
Jupiter    6.164e+08
Saturn     6.164e+08
Uranus     5.889e+08
Neptune    6.181e+08
Pluto      6.164e+08