Obs. : 2018-03-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.468e+11
Venus      3.480e+11
Earth      3.531e+11
Mars       3.474e+11
Jupiter    3.501e+11
Saturn     3.475e+11
Uranus     3.447e+11
Neptune    3.501e+11
Pluto      3.487e+11