Obs. : 2012-04-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.128e+11
Venus      4.127e+11
Earth      4.426e+11
Mars       4.487e+11
Jupiter    4.113e+11
Saturn     4.425e+11
Uranus     4.128e+11
Neptune    4.156e+11
Pluto      4.207e+11