| discov_num | notes | refcode |
| A 2257 | Systemic mass is estimated at 2.9 +/- 0.6 Msun, assuming a dynamical | |
| parallax of 4.73 +/- 0.20 mas. | Doc2008a |
| refcode | metd | author | reference |
| Doc2008a | S j | Docobo, J.A., Tamazian, V.S., Andrade, M., Ling, J.F., Balega, Y.Y., | 2008AJ....135.1803D |
| Doc2008a | +orb | Lahulla, J.F., & Maximov, A. | |
| Doc2008a | AJ 135, 1803, 2008 |
| idgroup | discov | author |
| 1 | A | Aitken, R.G. |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 18044+0337 | A 2257 | 2005 | 10 | 28 | 0.1 | 9.80 | 10.00 | F5 | NOD | 180422.03+033650.0 | |
| 18044+0337 | A 2257 | 2009 | 11 | 30 | 0.2 | 9.80 | 10.00 | F5 | NOD | 180422.03+033650.0 | |
| 18044+0337 | A 2257 | 2018 | 12 | 36 | 0.2 | 9.80 | 10.00 | F5 | NO | 180422.03+033650.0 |