Obs. : 2014-11-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.055e+11
Venus      4.086e+11
Earth      4.185e+11
Mars       4.189e+11
Jupiter    4.129e+11
Saturn     4.055e+11
Uranus     4.408e+11
Neptune    4.419e+11
Pluto      4.146e+11