Obs. : 2019-11-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.119e+08
Venus      6.238e+08
Earth      6.192e+08
Mars       6.119e+08
Jupiter    6.259e+08
Saturn     6.270e+08
Uranus     6.192e+08
Neptune    6.210e+08
Pluto      6.270e+08