Obs. : 2023-12-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.517e+08
Venus      8.544e+08
Earth      8.326e+08
Mars       8.568e+08
Jupiter    9.251e+08
Saturn     9.339e+08
Uranus     8.914e+08
Neptune    9.398e+08
Pluto      8.972e+08