Obs. : 2023-06-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.172e+08
Venus      9.155e+08
Earth      8.935e+08
Mars       9.155e+08
Jupiter    9.493e+08
Saturn     9.054e+08
Uranus     9.360e+08
Neptune    9.373e+08
Pluto      8.955e+08