| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara |
| Right ascension | 18h08m 30.10807s[1] |
| Declination | −45° 46′ 01.2534″[1] |
| Apparent magnitude (V) | 6.153[2] (6.15 + 9.55)[3] |
| Characteristics | |
| Spectral type | B7.5II[2] |
| U−B color index | −0.49[4] |
| B−V color index | −0.08[4] |
| Astrometry | |
| Radial velocity (Rv) | −35.0±4.3[5] km/s |
| Proper motion (μ) | RA: −2.88[1] mas/yr Dec.: −17.29[1] mas/yr |
| Parallax (π) | 3.68 ± 0.60 mas[1] |
| Distance | approx. 900 ly (approx. 270 pc) |
| Details | |
| HD 165493 A | |
| Mass | 3.98±0.10[2] M☉ |
| Luminosity | 457[2] L☉ |
| Temperature | 12,250[2] K |
| Other designations | |
CD-45 12215, HD 165493, HIP 88859, HR 6759, SAO 228734, WDS J18085-4546AB. | |
| Database references | |
| SIMBAD | data |
HD 165493isdouble star in the southern constellationofAra. As of 2011, the two components have an angular separation of 4″ along a position angle of 257°.[3]
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