1 J.C. Brandt, S.R. Heap, E.A. Beaver, A.. Boggess, K.G. Carpenter, D.C. Ebbets, J.B. Hutchings, M.A. Jura, D.S. Leckrone, J.L. Linsky, S.P. Maran, B.D. Savage, A.M. Smith, L.M. Trafton, F.M. Walter, R.J. Weymann, R.H. Hogen, M.. Snow, J.A. Cardelli, T.B. Ake, and F.C. Bruhweiler, The Astronomical Journal 112, (1996).