Obs. : 2023-02-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.442e+08
Venus      9.390e+08
Earth      8.914e+08
Mars       9.411e+08
Jupiter    9.396e+08
Saturn     9.466e+08
Uranus     9.340e+08
Neptune    9.390e+08
Pluto      9.381e+08