Obs. : 2020-01-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.280e+08
Venus      6.244e+08
Earth      6.119e+08
Mars       6.006e+08
Jupiter    6.107e+08
Saturn     6.214e+08
Uranus     6.114e+08
Neptune    6.221e+08
Pluto      6.214e+08