Obs. : 2015-02-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.805e+11
Venus      4.856e+11
Earth      5.316e+11
Mars       4.902e+11
Jupiter    5.335e+11
Saturn     5.084e+11
Uranus     4.966e+11
Neptune    4.856e+11
Pluto      4.957e+11