Obs. : 2020-06-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.374e+08
Venus      6.295e+08
Earth      6.291e+08
Mars       6.070e+08
Jupiter    6.173e+08
Saturn     6.138e+08
Uranus     6.242e+08
Neptune    6.070e+08
Pluto      6.173e+08