Obs. : 2023-05-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.170e+08
Venus      8.851e+08
Earth      9.128e+08
Mars       8.899e+08
Jupiter    9.170e+08
Saturn     9.229e+08
Uranus     9.079e+08
Neptune    9.214e+08
Pluto      9.250e+08