Obs. : 2009-01-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.480e+11
Venus      3.453e+11
Earth      3.437e+11
Mars       3.452e+11
Jupiter    3.474e+11
Saturn     3.385e+11
Uranus     3.417e+11
Neptune    3.474e+11
Pluto      3.408e+11