Obs. : 2020-02-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.125e+08
Venus      6.102e+08
Earth      6.168e+08
Mars       6.171e+08
Jupiter    6.191e+08
Saturn     6.193e+08
Uranus     6.058e+08
Neptune    6.102e+08
Pluto      6.193e+08