Obs. : 2020-09-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.077e+08
Venus      6.409e+08
Earth      6.240e+08
Mars       6.291e+08
Jupiter    6.114e+08
Saturn     6.114e+08
Uranus     6.291e+08
Neptune    6.141e+08
Pluto      6.114e+08