Obs. : 2016-04-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.092e+11
Venus      4.116e+11
Earth      3.983e+11
Mars       4.024e+11
Jupiter    3.811e+11
Saturn     4.024e+11
Uranus     4.116e+11
Neptune    4.059e+11
Pluto      4.082e+11