| discov_num | notes | refcode |
| HNK 4 | Member of Sco-Cen Association. Primary mass 2.46 +0.31/-0.59 Msun; | |
| secondary mass estimated at 98 +42/-12 Mjup (for age 10 Myr), or | ||
| 152 +56/-28 Mjup (for age 20 Myr). | Hnk2015 |
| refcode | metd | author | reference |
| Hnk2015 | Am j | Hinkley, S., Kraus, A.L., Ireland, M.J., Cheetham, A., Carpenter, J.M., | 2015ApJ...806L...9H |
| Hnk2015 | Tuthill, P., Lacour, S., Evans, T.M., & Hauboas, X. | ||
| Hnk2015 | ApJL 806, 9, 2015 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 15580-3144 | HNK 4 | 2010 | 1 | 266 | 0.1 | 7.10 | 12.00 | A0V | N K | 155759.34-314344.1 | |
| 15580-3144 | HNK 4 | 2018 | 2 | 260 | 0.1 | 7.10 | 12.00 | A0V | N K | 155759.34-314344.1 |