Obs. : 2016-04-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.095e+11
Venus      4.146e+11
Earth      4.275e+11
Mars       4.275e+11
Jupiter    4.087e+11
Saturn     4.296e+11
Uranus     4.146e+11
Neptune    4.139e+11
Pluto      4.268e+11