HD 157753
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara |
| Right ascension | 17h 27m 57.60133s |
| Declination | −52° 17′ 49.7149″ |
| Apparent magnitude (V) | 5.75 |
| Characteristics | |
| Spectral type | K2III |
| B−V color index | +1.17 |
| Astrometry | |
| Radial velocity (Rv) | −8.70 km/s |
| Proper motion (μ) | RA: −5.244 mas/yr Dec.: −72.181 mas/yr |
| Parallax (π) | 9.2351±0.0635 mas |
| Distance | 353 ± 2 ly (108.3 ± 0.7 pc) |
| Absolute magnitude (MV) | +0.53 |
| Details | |
| Mass | 1.4 M☉ |
| Radius | 15 R☉ |
| Luminosity | 68 L☉ |
| Surface gravity (log g) | 2.46 cgs |
| Temperature | 4,330 K |
| Metallicity [Fe/H] | −0.06 dex |
| Rotational velocity (v sin i) | <1.0 km/s |
| Other designations | |
| FK5 3386, HD 157753, HIP 85470, HR 6483, SAO 244763 | |
| Database references | |
| SIMBAD | data |
HD 157753 is giant star in the southern constellation of Ara. It may be an astrometric binary, and it has a faint, magnitude 13 companion at an angular separation of 31.5″ along a position angle of 356° (as of 2000).