Obs. : 2017-02-02
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.270e+11
Venus      3.167e+11
Earth      3.075e+11
Mars       3.167e+11
Jupiter    3.060e+11
Saturn     3.129e+11
Uranus     3.108e+11
Neptune    3.281e+11
Pluto      3.270e+11