Obs. : 2023-07-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.431e+08
Venus      9.431e+08
Earth      9.602e+08
Mars       9.406e+08
Jupiter    9.622e+08
Saturn     9.536e+08
Uranus     9.641e+08
Neptune    9.528e+08
Pluto      9.723e+08