Obs. : 2018-05-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.243e+11
Venus      3.160e+11
Earth      3.146e+11
Mars       3.248e+11
Jupiter    3.146e+11
Saturn     3.218e+11
Uranus     3.243e+11
Neptune    3.246e+11
Pluto      3.248e+11