Obs. : 2020-04-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.369e+08
Venus      6.021e+08
Earth      6.211e+08
Mars       6.299e+08
Jupiter    6.295e+08
Saturn     6.299e+08
Uranus     6.263e+08
Neptune    6.369e+08
Pluto      6.295e+08