Obs. : 2025-02-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.140e+08
Venus      9.662e+08
Earth      8.893e+08
Mars       8.900e+08
Jupiter    9.114e+08
Saturn     9.140e+08
Uranus     9.573e+08
Neptune    9.434e+08
Pluto      8.487e+08