Obs. : 2020-07-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.121e+08
Venus      6.191e+08
Earth      6.317e+08
Mars       6.122e+08
Jupiter    6.294e+08
Saturn     6.294e+08
Uranus     6.102e+08
Neptune    6.138e+08
Pluto      6.294e+08