Obs. : 2014-05-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.886e+11
Venus      3.865e+11
Earth      4.200e+11
Mars       3.949e+11
Jupiter    3.888e+11
Saturn     4.046e+11
Uranus     3.865e+11
Neptune    3.914e+11
Pluto      4.255e+11