Obs. : 2023-02-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.250e+08
Venus      9.251e+08
Earth      8.661e+08
Mars       8.963e+08
Jupiter    9.289e+08
Saturn     9.266e+08
Uranus     9.123e+08
Neptune    9.251e+08
Pluto      9.229e+08