| discov_num | notes | refcode |
| SEE 21 | This very close visual system was discovered at a separation of 0".36 | See1898b |
| and has closed steadily for over 90 years. It is unknown at this | ||
| point whether the system is still approaching periastron or has | ||
| begun to widen. | Hrt1993 |
| refcode | metd | author | reference |
| Hrt1993 | Sc j | Hartkopf, W.I., Mason, B.D., Barry, D.J., McAlister, H.A., Bagnuolo, W.G., & | 1993AJ....106..352H |
| Hrt1993 | Prieto, C.M. | ||
| Hrt1993 | AJ 106, 352, 1993 | ||
| See1898b | Ma j | See, T.J.J. | 1898AJ.....18..181S |
| See1898b | AJ 18, 181, 1898 |
| discov | author |
| HRT | Hartkopf, W.I. & McAlister, H.A. |
| HRT | Hartkopf, W.I., McAlister, H.A., Mason, B.D., ten Brummelaar, T.A., Roberts, J.C., |
| HRT | Jr., Turner, N.H., & Wilson, J.W. |
| HRT | Hartkopf, W.I., W.I., Mason, B.D., Gies, D.R., ten Brummelaar, T., |
| HRT | McAlister, H.A., Moffat, A.F.J., Shara, M.M., & Wallace, D.J. |
| HRT | Mason, B.D., Martin, C., Hartkopf, W.I., Barry, D.J., Germain, M.E., |
| HRT | Douglass, G.G., Worley, C.E., ten Brummelaar, T.A., et al. |
| HRT | Hartkopf, W.I., Mason, B.D., McAlister, H.A., Roberts, L.C., Jr., Turner, N.H., |
| HRT | ten Brummelaar, T.A., Prieto, C.M., Ling, J.F., & Franz, O.G. |
| HRT | Mason, B.D., Henry, T.J., Soderblom. D.R., Hartkopf, W.I., Holdenreid, E.R., |
| HRT | Rafferty, T.J., & Urban, S.E. |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | dm_number | notes | coord_arcsec_2000 |
| 02518-2117 | SEE 21 | 1993 | 17 | 51 | 0.1 | 9.00 | 9.20 | G3IV | -21 511 | N | 025146.12-211723.1 | |
| 02518-2117 | SEE 21 | 2020 | 18 | 325 | 0.1 | 9.00 | 9.20 | G3IV | -21 511 | N | 025146.12-211723.1 | |
| 02518-2117 | SEE 21 | 2021 | 19 | 323 | 0.1 | 9.00 | 9.20 | G3IV | -21 511 | N | 025146.12-211723.1 |