Obs. : 2012-11-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.722e+11
Venus      3.710e+11
Earth      4.084e+11
Mars       3.556e+11
Jupiter    4.065e+11
Saturn     3.710e+11
Uranus     3.664e+11
Neptune    3.562e+11
Pluto      3.556e+11