Obs. : 2020-07-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.173e+08
Venus      6.202e+08
Earth      6.246e+08
Mars       6.110e+08
Jupiter    6.185e+08
Saturn     6.185e+08
Uranus     6.155e+08
Neptune    6.119e+08
Pluto      6.185e+08