Obs. : 2019-11-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.128e+08
Venus      6.346e+08
Earth      6.191e+08
Mars       6.121e+08
Jupiter    6.346e+08
Saturn     6.375e+08
Uranus     6.187e+08
Neptune    6.268e+08
Pluto      6.375e+08