Obs. : 2024-02-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.709e+08
Venus      8.601e+08
Earth      8.415e+08
Mars       8.601e+08
Jupiter    8.845e+08
Saturn     8.779e+08
Uranus     8.746e+08
Neptune    8.901e+08
Pluto      8.553e+08