Obs. : 2016-07-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.875e+11
Venus      3.891e+11
Earth      3.864e+11
Mars       3.883e+11
Jupiter    3.877e+11
Saturn     3.861e+11
Uranus     4.190e+11
Neptune    3.959e+11
Pluto      3.853e+11