| discov_num | notes | refcode |
| MCA 49 | Aa,Ab: 1980.4820: This measure was incorrectly attributed to HR 6148 | |
| by McAlister et al. (1983). | McA1983 |
| refcode | metd | author | reference |
| McA1983 | Sc j | McAlister, H.A., Hendry, E.M., Hartkopf, W.I., Campbell, B.G., & Fekel, F.C. | 1983ApJS...51..309M |
| McA1983 | ApJS 51, 309, 1983 |
| idgroup | discov | author |
| 1 | STF | Struve, F.G.W. |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 17564+1820 | MCA 49 | Aa,Ab | 1996 | 16 | 70 | 0.1 | 6.60 | A0III | N | 175624.41+181937.3 | |
| 17564+1820 | MCA 49 | Aa,Ab | 2009 | 18 | 92 | 0.1 | 6.60 | A0III | N | 175624.41+181937.3 | |
| 17564+1820 | MCA 49 | Aa,Ab | 2015 | 20 | 276 | 0.1 | 7.60 | 8.40 | A0III | N | 175624.41+181937.3 |
| 17564+1820 | MCA 49 | Aa,Ab | 2017 | 21 | 100 | 0.1 | 7.60 | 8.40 | A0III | N | 175624.41+181937.1 |
| 17564+1820 | MCA 49 | Aa,Ab | 2019 | 22 | 286 | 0.1 | 7.60 | 8.40 | A0III | N | 175624.41+181937.1 |
| 17564+1820 | MCA 49 | Aa,Ab | 2021 | 24 | 286 | 0.1 | 7.60 | 8.40 | A0III | N | 175624.41+181937.1 |