| refcode | metd | author | reference |
| HDS | Hipparcos Double Star (from additional DD list) | ................... |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 18421+2857 | HDS2648 | 1991 | 1 | 97 | 0.2 | 9.46 | 9.65 | M | 184204.83+285729.7 | ||
| 18421+2857 | HDS2648 | 2009 | 2 | 194 | 0.3 | 9.46 | 9.65 | M | 184204.83+285729.7 |