Obs. : 2014-01-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.299e+11
Venus      4.321e+11
Earth      4.137e+11
Mars       4.024e+11
Jupiter    4.137e+11
Saturn     4.026e+11
Uranus     4.135e+11
Neptune    4.214e+11
Pluto      4.321e+11