Obs. : 2020-06-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.121e+08
Venus      6.194e+08
Earth      6.302e+08
Mars       6.080e+08
Jupiter    6.213e+08
Saturn     6.179e+08
Uranus     6.162e+08
Neptune    6.081e+08
Pluto      6.213e+08