Obs. : 2024-01-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.832e+08
Venus      9.788e+08
Earth      8.986e+08
Mars       9.769e+08
Jupiter    8.443e+08
Saturn     8.807e+08
Uranus     8.559e+08
Neptune    8.617e+08
Pluto      9.603e+08