Obs. : 2023-07-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.154e+08
Venus      9.154e+08
Earth      9.130e+08
Mars       9.202e+08
Jupiter    9.459e+08
Saturn     9.242e+08
Uranus     9.434e+08
Neptune    9.337e+08
Pluto      8.897e+08