Obs. : 2012-03-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.631e+11
Venus      5.012e+11
Earth      4.328e+11
Mars       4.235e+11
Jupiter    5.012e+11
Saturn     3.946e+11
Uranus     4.631e+11
Neptune    3.957e+11
Pluto      3.606e+11