Obs. : 2022-12-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.708e+08
Venus      8.824e+08
Earth      8.263e+08
Mars       8.237e+08
Jupiter    8.231e+08
Saturn     8.448e+08
Uranus     8.165e+08
Neptune    8.275e+08
Pluto      8.708e+08