| discov_num | notes | refcode |
| A 887 | AB: Closed in in the last 30 years. Needs speckle. | |
| AC: Based on inspection of the field, the Aitken measure apparently | A__1932a | |
| had a typographical error in theta - 112.4 should be 312.4. | ||
| AB: Rectilinear solution by Rica & Zirm (2012). | FMR2012i |
| refcode | metd | author | reference |
| A__1932a | Ma - | Aitken, R.G. | 1932QB821.A43...... |
| A__1932a | Aitken Double Star Catalogue, 1932 | ||
| FMR2012i | orb - | Rica Romero, F.M. & Zirm, H. | 2012IAUDS.177Q...1R |
| FMR2012i | Inf. Circ. 177, 1, 2012 |
| discov | author |
| A | Aitken, R.G. |
| FMR | Rica, F., Barrena, R., Antonio Henriquez, J., Vazquez, G., Vazquez, C., Hernandez, |
| FMR | Rica, F.M. |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | dm_number | notes | coord_arcsec_2000 |
| 21254+1121 | A 887 | AB | 1996 | 15 | 179 | 0.1 | 8.70 | 9.70 | F8 | +10 4542 | N | 212526.93+112046.0 |
| 21254+1121 | A 887 | AB | 2018 | 16 | 209 | 0.1 | 8.29 | 9.70 | F8 | +10 4542 | N | 212526.92+112045.7 |
| 21254+1121 | A 887 | AB | 2021 | 18 | 213 | 0.1 | 8.29 | 9.70 | F8 | +10 4542 | N | 212526.92+112045.7 |