Obs. : 2020-09-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.010e+08
Venus      6.409e+08
Earth      6.456e+08
Mars       6.454e+08
Jupiter    6.231e+08
Saturn     6.286e+08
Uranus     6.485e+08
Neptune    6.345e+08
Pluto      6.286e+08