Obs. : 2017-02-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.288e+11
Venus      3.410e+11
Earth      3.193e+11
Mars       3.396e+11
Jupiter    3.106e+11
Saturn     3.182e+11
Uranus     3.327e+11
Neptune    3.432e+11
Pluto      3.197e+11