Obs. : 2017-06-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    2.853e+11
Venus      2.821e+11
Earth      2.857e+11
Mars       2.884e+11
Jupiter    2.917e+11
Saturn     2.836e+11
Uranus     2.821e+11
Neptune    2.773e+11
Pluto      2.820e+11