Obs. : 2016-02-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.163e+11
Venus      4.163e+11
Earth      4.006e+11
Mars       3.895e+11
Jupiter    3.973e+11
Saturn     3.901e+11
Uranus     4.322e+11
Neptune    4.396e+11
Pluto      3.981e+11