Obs. : 2019-01-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.558e+11
Venus      3.418e+11
Earth      3.470e+11
Mars       3.550e+11
Jupiter    3.447e+11
Saturn     3.558e+11
Uranus     3.478e+11
Neptune    3.582e+11
Pluto      3.558e+11