Obs. : 2019-07-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.412e+11
Venus      3.436e+11
Earth      3.463e+11
Mars       3.469e+11
Jupiter    3.467e+11
Saturn     3.454e+11
Uranus     3.433e+11
Neptune    3.408e+11
Pluto      3.440e+11