Obs. : 2023-02-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.746e+08
Venus      8.713e+08
Earth      9.872e+08
Mars       9.524e+08
Jupiter    9.068e+08
Saturn     8.626e+08
Uranus     9.314e+08
Neptune    8.920e+08
Pluto      8.746e+08