Obs. : 2013-10-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.112e+11
Venus      4.107e+11
Earth      4.315e+11
Mars       4.306e+11
Jupiter    4.280e+11
Saturn     4.153e+11
Uranus     4.376e+11
Neptune    4.318e+11
Pluto      4.129e+11