Obs. : 2024-06-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.190e+08
Venus      9.190e+08
Earth      8.852e+08
Mars       9.378e+08
Jupiter    9.189e+08
Saturn     9.791e+08
Uranus     9.205e+08
Neptune    9.791e+08
Pluto      9.175e+08