Obs. : 2023-05-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.311e+08
Venus      8.873e+08
Earth      8.934e+08
Mars       8.876e+08
Jupiter    9.311e+08
Saturn     9.114e+08
Uranus     9.100e+08
Neptune    9.363e+08
Pluto      8.805e+08