HD 72561
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Hydra |
| Right ascension | 8h 33m 43.49s |
| Declination | +04° 45′ 25.3″ |
| Apparent magnitude (V) | 5.86 |
| Characteristics | |
| Spectral type | G5III |
| Apparent magnitude (B) | 6.935 |
| Apparent magnitude (J) | 4.317 |
| Apparent magnitude (H) | 3.728 |
| Apparent magnitude (K) | 3.683 |
| U−B color index | +0.88 |
| B−V color index | +1.07 |
| Variable type | ??? |
| Astrometry | |
| Radial velocity (Rv) | +0.7 km/s |
| Proper motion (μ) | RA: -14.30 mas/yr Dec.: -6.17 mas/yr |
| Parallax (π) | 0.60 ± 1.09 mas |
| Distance | 5,433 ly (1,666 pc) |
| Absolute magnitude (MV) | -5.24 |
| Details | |
| Mass | 9 to 10 M☉ |
| Radius | 121.7 R☉ |
| Luminosity | 13,558 L☉ |
| Temperature | 5,650 K |
| Age | ~40 million years |
| Other designations | |
HD 72561 is a G-type giant in the constellation Hydra.
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