Obs. : 2020-01-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.161e+08
Venus      6.332e+08
Earth      6.190e+08
Mars       6.003e+08
Jupiter    6.161e+08
Saturn     6.327e+08
Uranus     6.146e+08
Neptune    6.291e+08
Pluto      6.327e+08