HD 72561
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Hydra |
| Right ascension | 08h 33m 43.47908s |
| Declination | +04° 45′ 25.1949″ |
| Apparent magnitude (V) | 5.867 |
| Characteristics | |
| Evolutionary stage | horizontal branch |
| Spectral type | G5 III |
| U−B color index | +0.87 |
| B−V color index | +1.07 |
| Astrometry | |
| Radial velocity (Rv) | +1.60±0.3 km/s |
| Proper motion (μ) | RA: −13.18 mas/yr Dec.: −6.84 mas/yr |
| Parallax (π) | 1.98±0.41 mas |
| Distance | approx. 1,600 ly (approx. 500 pc) |
| Details | |
| Mass | 4.58±0.40 M☉ |
| Radius | 48.41±9.26 R☉ |
| Luminosity | 1,109.6±422.9 L☉ |
| Surface gravity (log g) | 1.80±0.15 cgs |
| Temperature | 4,792±36 K |
| Metallicity [Fe/H] | −0.16±0.10 dex |
| Age | 0.15±0.04 Gyr |
| Other designations | |
| BD+05°1997, HIP 42008, HR 3378, SAO 116890 | |
| Database references | |
| SIMBAD | data |
HD 72561 is a star in the constellation Hydra. Its apparent magnitude is 5.867. Based on parallax shift, it is located about 1,600 light-years (500 parsecs) away.
HD 72561 is a G-type giant star. It is over 4 times as massive as the Sun and 48 times as wide. It is about 150 million years old.