| discov_num | notes | refcode |
| BU 720 | Variable? | Egg1947 |
| Only elements P and T have been amended by Starikova (1982) from the | Sta1982b | |
| orbit of Baize (1976). | Baz1976 | |
| Elements published for this long-period system differ: Costa (1966 | ||
| Urania, Barcelona 51, 73) quotes P = 198.6 yr, while Tel'nyuk-Adamchuk | TkA1966 | |
| gives P = 425 yr. The observed theta and rho for 1975.953 are in | ||
| reasonable agreement with either uncertain orbit. | BLM1978 | |
| See Baize & Petit (1989) catalog of doubles with variable component. | Baz1989d |
| refcode | metd | author | reference |
| Baz1976 | orb - | Baize, P. | 1976A&AS...26..177B |
| Baz1976 | A&AS 26, 177, 1976 | ||
| Baz1989d | - | Baize, P. & Petit, M. | 1989A&AS...77..497B |
| Baz1989d | A&AS 77, 497, 1989 | ||
| BLM1978 | S j | Morgan, B.L., Beddoes, D.R., Scaddan, R.J. & Dainty, J.C. | 1978MNRAS.183..701M |
| BLM1978 | MNRAS 183, 701, 1978 | ||
| Egg1947 | Ma - | Eggen, O.J. | 1947AJ.....53...21E |
| Egg1947 | AJ 53, 21, 1947 | ||
| Mut2010e | Kp - | Muterspaugh, M.W., Lane, B.F., Kulkarni, S.R., Konacki, M., Burke, B.F., | 2010AJ....140.1657M |
| Mut2010e | +orb | Colavita, M.M., Shao, M., Hartkopf, W., Boss, A.P., & Williamson, M. | |
| Mut2010e | AJ 140, 1657, 2010 | ||
| Sta1982b | orb - | Starikova, G.A. | 1982SvAL....8..166S |
| Sta1982b | SvAL 8, 166, 1982 (Pisma Astron. Zhur. 8, 306, 1982) | ||
| TkA1966 | Ma j | Tel'nyuk-Adamchuk, V.V. | . |
| TkA1966 | +orb | Kiev Univ. Ser. Astron. #7, 119, 1966 |
| idgroup | discov | author |
| 1 | BU | Burnham, S.W. (BU 1 - 81) |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 23340+3120 | BU 720 | 2007 | 350 | 99 | 0.6 | 5.67 | 6.11 | K4IIIb | NOD | 233357.19+311931.0 | |
| 23340+3120 | BU 720 | 2008 | 355 | 100 | 0.5 | 5.67 | 6.11 | K4IIIb | NOD | 233357.19+311931.0 | |
| 23340+3120 | BU 720 | 2010 | 455 | 102 | 0.5 | 5.67 | 6.11 | K4IIIb | NOD | 233357.19+311931.0 | |
| 23340+3120 | BU 720 | 2011 | 465 | 102 | 0.6 | 5.67 | 6.11 | K4IIIb | NO | 233357.19+311931.0 | |
| 23340+3120 | BU 720 | 2014 | 429 | 100 | 0.7 | 5.67 | 6.11 | K4IIIb | NO | 233357.19+311931.0 | |
| 23340+3120 | BU 720 | 2015 | 431 | 101 | 0.5 | 5.67 | 6.11 | K4IIIb | NO | 233357.19+311931.0 | |
| 23340+3120 | BU 720 | 2016 | 434 | 102 | 0.7 | 5.67 | 6.11 | K4IIIb | NO | 233357.19+311931.0 | |
| 23340+3120 | BU 720 | 2017 | 437 | 106 | 0.6 | 5.67 | 6.11 | K4IIIb | NO | 233357.19+311931.0 | |
| 23340+3120 | BU 720 | 2018 | 438 | 107 | 0.6 | 5.67 | 6.11 | K4IIIb | NO | 233357.19+311931.0 |