HD 118889
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| Right ascension | 13h 39m 34.6169s |
| Declination | +10° 44′ 46.567″ |
| Apparent magnitude (V) | 5.58 |
| Characteristics | |
| Spectral type | F0V |
| U−B color index | 0.05 |
| B−V color index | 0.33 |
| Astrometry | |
| Radial velocity (Rv) | -18 km/s |
| Proper motion (μ) | RA: -113.44 mas/yr Dec.: -13.38 mas/yr |
| Parallax (π) | 18.68 ± 0.91 mas |
| Distance | 175 ± 9 ly (54 ± 3 pc) |
| Absolute magnitude (MV) | 5.884 |
| Details | |
| Mass | 1.7 M☉ |
| Radius | 1.4 R☉ |
| Luminosity | 6 L☉ |
| Temperature | 6,000–7,500 K |
| Rotation | 111 Km/s 0,00175 Year |
| Orbit | |
| Companion | CCDM 13395+1045 B BU 612 |
| Period (P) | 22.35 yr |
| Semi-major axis (a) | 0.208" |
| Eccentricity (e) | 0.527 |
| Inclination (i) | 47.8° |
| Longitude of the node (Ω) | 35.4° |
| Periastron epoch (T) | 1929.69 |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
| Database references | |
| SIMBAD | data |
HD 118889 or ADS 8987 B is a double or multiple star.
References
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