| discov_num | notes | refcode |
| JNN 287 | Estimated age 1000-10000 Myr; masses 0.54 +/- 0.05 and 0.28 +/- 0.03 | |
| Msun; a ~22.8 au. | Jnn2014 |
| refcode | metd | author | reference |
| Jnn2014 | A - | Janson, M., Bergfors, C., Brandner, W., Kudryavtseva, N., Hormuth, F., | 2014ApJ...789..102J |
| Jnn2014 | +Cl | Hippler, S., & Henning, T. | |
| Jnn2014 | ApJ 789, 102, 2014 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20593+5303 | JNN 287 | 2012 | 3 | 21 | 0.4 | 14.08 | 16.00 | M4.5 | 205920.36+530304.9 | ||
| 20593+5303 | JNN 287 | 2016 | 4 | 11 | 0.5 | 14.08 | 16.00 | M4.5 | N | 205920.36+530304.9 |