HD 128198
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| Right ascension | 14h 34m 38.5001s |
| Declination | +36° 37′ 33.83″ |
| Apparent magnitude (V) | 6.016 |
| Characteristics | |
| Spectral type | K5III |
| B−V color index | 1.38 |
| Variable type | Variable star NSV 6718 |
| Astrometry | |
| Radial velocity (Rv) | -12 km/s |
| Proper motion (μ) | RA: -24.54 mas/yr Dec.: -46.6 mas/yr |
| Parallax (π) | 5.74 ± 0.83 mas |
| Distance | approx. 570 ly (approx. 170 pc) |
| Absolute magnitude (MV) | 7.442 |
| Details | |
| Mass | 0.8 M☉ |
| Radius | 0.9 R☉ |
| Luminosity | 0.4 L☉ |
| Temperature | 3,500–5,000 K |
| Other designations | |
BD+37° 2551, HIP 71277, HR 5448, SAO 64227. | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
HD 128198 is a variable star in the constellation Boötes.
References
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