Obs. : 2020-05-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.357e+08
Venus      6.428e+08
Earth      6.232e+08
Mars       6.003e+08
Jupiter    6.016e+08
Saturn     6.016e+08
Uranus     6.220e+08
Neptune    6.007e+08
Pluto      6.046e+08