Obs. : 2024-06-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.086e+08
Venus      9.086e+08
Earth      8.952e+08
Mars       9.190e+08
Jupiter    8.973e+08
Saturn     9.770e+08
Uranus     9.014e+08
Neptune    9.770e+08
Pluto      9.240e+08