| A | B | C | |
| B | pa=264.3° sep=5.52" | ||
| C | pa=40.0° sep=17.11" | pa=50.4° sep=21.41" | |
| D | pa=28.9° sep=16.95" | pa=41.6° sep=20.59" | pa=301.7° sep=3.31" |
| Name | HD 331657 | Coord arcsec 2000 | 200043.23+323134.7 | Mag | 9.74 | Spectral class | B9 (blue-white) | ||||
| PmRA | 5.00 | PmDE | -3.0 | Tycho2 | 2674-03573-1 | HD | 331657 |
| Tycho2 | 2674-03573-1 | Pflag | RAmdeg | 300.18015145 | DEmdeg | 32.52633423 | |||||
| PmRA | 7.5 | PmDE | 1.4 | E RAmdeg | 12 | E DEmdeg | 11 | ||||
| E pmRA | 1.0 | E pmDE | 1.0 | EpRAm | 1989.24 | EpDEm | 1990.13 | ||||
| Num | 7 | Q RAmdeg | 4.0 | Q DEmdeg | 1.5 | Q pmRA | 4.0 | ||||
| Q pmDE | 1.7 | BTmag | 9.698 | E BTmag | 0.021 | VTmag | 9.740 | ||||
| E VTmag | 0.024 | Prox | 999 | TYC | T | HIP | |||||
| CCDM | RAdeg | 300.18013917 | DEdeg | 32.52633028 | EpRA 1990 | 1.57 | |||||
| EpDE 1990 | 1.73 | E RAdeg | 12.6 | E DEdeg | 11.1 | Posflg | |||||
| Corr | 0.1 |
| Coord arcsec 2000 | 200042.80+323134.2 | Mag | 12.2 | Calc delta mag | 2.46 | Calc coord | yes |
| Coord arcsec 2000 | 200044.10+323147.8 | Coord calc | 200044.10+323147.8 | Mag | 12 | PmRA | 4.00 | ||||
| PmDE | -3.0 | Calc delta mag | 2.26 |
| Coord arcsec 2000 | 200043.88+323149.5 | Mag | 12 | Calc delta mag | 2.26 | Calc coord | yes |