Obs. : 2020-02-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.271e+08
Venus      6.039e+08
Earth      6.158e+08
Mars       6.274e+08
Jupiter    6.274e+08
Saturn     6.346e+08
Uranus     5.959e+08
Neptune    6.271e+08
Pluto      6.346e+08