Obs. : 2019-11-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.051e+08
Venus      6.101e+08
Earth      6.102e+08
Mars       6.035e+08
Jupiter    6.162e+08
Saturn     6.171e+08
Uranus     6.100e+08
Neptune    6.146e+08
Pluto      6.171e+08