Obs. : 2016-02-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.159e+11
Venus      4.159e+11
Earth      4.421e+11
Mars       4.362e+11
Jupiter    4.483e+11
Saturn     4.237e+11
Uranus     4.188e+11
Neptune    4.187e+11
Pluto      4.184e+11