Obs. : 2017-06-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.637e+11
Venus      3.666e+11
Earth      3.690e+11
Mars       3.636e+11
Jupiter    3.764e+11
Saturn     3.635e+11
Uranus     3.666e+11
Neptune    3.566e+11
Pluto      3.624e+11