Obs. : 2013-02-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.124e+11
Venus      4.303e+11
Earth      4.158e+11
Mars       4.180e+11
Jupiter    4.130e+11
Saturn     4.147e+11
Uranus     4.113e+11
Neptune    4.180e+11
Pluto      4.258e+11