Obs. : 2025-01-31
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.773e+08
Venus      9.730e+08
Earth      9.452e+08
Mars       9.348e+08
Jupiter    9.083e+08
Saturn     9.934e+08
Uranus     9.165e+08
Neptune    9.730e+08
Pluto      9.773e+08