Obs. : 2015-08-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.848e+11
Venus      3.842e+11
Earth      4.341e+11
Mars       4.177e+11
Jupiter    3.842e+11
Saturn     4.196e+11
Uranus     4.434e+11
Neptune    4.348e+11
Pluto      4.310e+11