Obs. : 2017-05-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.800e+11
Venus      3.797e+11
Earth      3.691e+11
Mars       3.701e+11
Jupiter    3.571e+11
Saturn     3.746e+11
Uranus     3.800e+11
Neptune    3.831e+11
Pluto      3.774e+11