Obs. : 2015-05-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.631e+11
Venus      4.729e+11
Earth      4.216e+11
Mars       4.631e+11
Jupiter    4.661e+11
Saturn     4.148e+11
Uranus     4.428e+11
Neptune    4.325e+11
Pluto      4.211e+11