Obs. : 2012-05-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.415e+11
Venus      4.451e+11
Earth      4.580e+11
Mars       4.835e+11
Jupiter    4.415e+11
Saturn     4.884e+11
Uranus     4.448e+11
Neptune    4.347e+11
Pluto      4.530e+11