Obs. : 2012-06-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.466e+11
Venus      4.514e+11
Earth      4.011e+11
Mars       4.322e+11
Jupiter    4.514e+11
Saturn     4.186e+11
Uranus     4.542e+11
Neptune    4.325e+11
Pluto      4.011e+11