Obs. : 2012-03-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.185e+11
Venus      4.195e+11
Earth      4.286e+11
Mars       4.242e+11
Jupiter    4.200e+11
Saturn     4.272e+11
Uranus     4.185e+11
Neptune    4.196e+11
Pluto      4.256e+11