Obs. : 2023-10-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.863e+08
Venus      9.158e+08
Earth      9.334e+08
Mars       8.842e+08
Jupiter    9.463e+08
Saturn     9.154e+08
Uranus     9.505e+08
Neptune    9.233e+08
Pluto      9.110e+08