Obs. : 2019-03-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.612e+11
Venus      3.650e+11
Earth      3.547e+11
Mars       3.463e+11
Jupiter    3.569e+11
Saturn     3.592e+11
Uranus     3.463e+11
Neptune    3.640e+11
Pluto      3.592e+11