Obs. : 2022-07-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.601e+08
Venus      8.147e+08
Earth      7.984e+08
Mars       7.798e+08
Jupiter    7.863e+08
Saturn     7.984e+08
Uranus     7.780e+08
Neptune    7.884e+08
Pluto      8.293e+08