Obs. : 2015-06-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.626e+11
Venus      3.957e+11
Earth      3.290e+11
Mars       3.656e+11
Jupiter    3.957e+11
Saturn     3.520e+11
Uranus     3.322e+11
Neptune    3.176e+11
Pluto      3.219e+11