Obs. : 2025-10-02
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.763e+08
Venus      9.208e+08
Earth      8.422e+08
Mars       8.563e+08
Jupiter    9.128e+08
Saturn     8.477e+08
Uranus     8.992e+08
Neptune    8.477e+08
Pluto      8.336e+08