Obs. : 2019-12-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    5.959e+08
Venus      6.096e+08
Earth      5.983e+08
Mars       5.875e+08
Jupiter    6.057e+08
Saturn     6.065e+08
Uranus     5.984e+08
Neptune    6.083e+08
Pluto      6.065e+08