Obs. : 2019-04-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.672e+11
Venus      3.665e+11
Earth      3.547e+11
Mars       3.367e+11
Jupiter    3.661e+11
Saturn     3.651e+11
Uranus     3.502e+11
Neptune    3.672e+11
Pluto      3.651e+11