Obs. : 2023-09-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.071e+08
Venus      9.056e+08
Earth      9.154e+08
Mars       9.269e+08
Jupiter    9.197e+08
Saturn     9.322e+08
Uranus     9.164e+08
Neptune    9.154e+08
Pluto      9.496e+08