Obs. : 2020-07-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.251e+08
Venus      6.213e+08
Earth      6.280e+08
Mars       6.140e+08
Jupiter    6.280e+08
Saturn     6.213e+08
Uranus     6.122e+08
Neptune    6.157e+08
Pluto      6.280e+08