Obs. : 2016-04-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.143e+11
Venus      4.182e+11
Earth      4.227e+11
Mars       4.208e+11
Jupiter    4.232e+11
Saturn     4.179e+11
Uranus     4.182e+11
Neptune    4.142e+11
Pluto      4.102e+11