Obs. : 2015-02-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    5.128e+11
Venus      4.936e+11
Earth      4.682e+11
Mars       4.936e+11
Jupiter    4.682e+11
Saturn     4.907e+11
Uranus     4.887e+11
Neptune    4.995e+11
Pluto      5.154e+11