HD 130144
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| Right ascension | 14h 46m 05.9459s |
| Declination | +15° 07′ 54.436″ |
| Apparent magnitude (V) | 5.88 |
| Characteristics | |
| Spectral type | M5IIIab |
| U−B color index | 1.31 |
| B−V color index | 1.57 |
| Variable type | Semi-regular pulsating Star variable star identification 6796 |
| Astrometry | |
| Radial velocity (Rv) | -22.3 km/s |
| Proper motion (μ) | RA: -85.07 mas/yr Dec.: 19.27 mas/yr |
| Parallax (π) | 3.59 ± 0.86 mas |
| Distance | approx. 900 ly (approx. 280 pc) |
| Absolute magnitude (MV) | 7.21 |
| Details | |
| Mass | 0.4 M☉ |
| Radius | 0.5 R☉ |
| Luminosity | 0.04 L☉ |
| Temperature | 2,000–3,500 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
HD 130144 or EK Boötis is a semiregular variable star.
References
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