Obs. : 2024-02-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.651e+08
Venus      8.742e+08
Earth      8.458e+08
Mars       8.742e+08
Jupiter    8.146e+08
Saturn     8.633e+08
Uranus     8.146e+08
Neptune    8.407e+08
Pluto      8.804e+08