Obs. : 2016-02-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.186e+11
Venus      4.186e+11
Earth      4.358e+11
Mars       4.375e+11
Jupiter    4.416e+11
Saturn     4.258e+11
Uranus     4.176e+11
Neptune    4.151e+11
Pluto      4.226e+11