Obs. : 2023-07-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.060e+08
Venus      8.996e+08
Earth      9.246e+08
Mars       8.996e+08
Jupiter    8.996e+08
Saturn     9.103e+08
Uranus     8.974e+08
Neptune    9.044e+08
Pluto      9.336e+08