NGC 2264

Number of stars per data source

	Reference   76 :    2 stars
	Reference   77 :    2 stars
	Reference  112 :    2 stars

76: Gies D.R., Mason B.D., Hartkopf W.I., McAlister H.A., Frazin R.A., Hahula M.E., Penny L.R., Thaller M.L., Fullerton A.M., Shara M.M.; (1993) Astron. J. 106, 2072; Binary star orbits from speckle interferometry. V. A combined speckle/spectroscopic study of the O star binary 15 Monocerotis; 1993AJ....106.2072G
77: Gieren W.P., Welch D.L., Mermilliod J.-C., Matthews J.M., Hertling G.; (1994) Astron. J. 107, 2093; Independent distance determinations to Milky Way cepheids in open clusters. I. The binary cepheid DL Cas in NGC 129; 1994AJ....107.2093G
112: Gies D.R., Mason B.D., Bagnuolo W.G.Jr, Hahula M.E., Hartkopf W.I., McAlister H.A., Thaller M.I.; (1997) Astrophys. J. 475, L49; The O-type binary 15 Monocerotis nears periastron; 1997ApJ...475L..49G