| refcode | metd | author | reference |
| Osw1988 | - | Oswalt, T.D., Hintzen, P.M., & Luyten, W.J. | 1988ApJS...66..391O |
| Osw1988 | ApJS 66, 391, 1988 | ||
| Osw2011 | C - | Zhao, J.K., Oswalt, T.D., Rudkin, M., Zhao, G. & Chen, Y.Q. | 2011AJ....141..107Z |
| Osw2011 | +Es | AJ 141, 107, 2011 | |
| Osw2012 | Es j | Zhao, J.K., Oswalt, T.D. & Zhao, G. | 2012AJ....143...31Z |
| Osw2012 | AJ 143, 31, 2012 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 21321+7507 | OSW 63 | 2003 | 3 | 233 | 87.2 | 15.80 | 16.50 | K1+K3 | V | 213206.34+750644.8 | |
| 21321+7507 | OSW 63 | 2010 | 5 | 233 | 87.2 | 15.80 | 16.50 | K1+K3 | V | 213206.34+750644.8 | |
| 21321+7507 | OSW 63 | 2015 | 6 | 233 | 87.1 | 15.80 | 16.50 | K1+K3 | V | 213206.34+750644.8 |