| discov | author |
| J | Jonckheere, R. |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | dm_number | notes | coord_arcsec_2000 |
| 21212+1841 | J 160 | 2000 | 5 | 288 | 3.2 | 9.60 | 9.80 | 212120.36+184211.1 | ||||
| 21212+1841 | J 160 | 2010 | 6 | 287 | 3.1 | 9.60 | 9.80 | 212120.36+184211.1 | ||||
| 21212+1841 | J 160 | 2016 | 8 | 290 | 3.2 | 12.20 | 12.40 | 212120.36+184211.1 |