Obs. : 2024-02-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.640e+08
Venus      8.623e+08
Earth      8.702e+08
Mars       8.623e+08
Jupiter    9.036e+08
Saturn     8.765e+08
Uranus     9.111e+08
Neptune    8.853e+08
Pluto      8.623e+08