Obs. : 2023-06-02
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.568e+08
Venus      8.846e+08
Earth      8.987e+08
Mars       8.846e+08
Jupiter    8.693e+08
Saturn     8.616e+08
Uranus     8.568e+08
Neptune    8.763e+08
Pluto      8.614e+08