| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Grus |
| Right ascension | 22h 46m 08.03428s[1] |
| Declination | −48° 58′ 43.7624″[1] |
| Apparent magnitude (V) | 6.63[2] |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | G0.5V[3] |
| B−V color index | 0.636±0.006[2] |
| Astrometry | |
| Radial velocity (Rv) | −18.923±0.0003[1] km/s |
| Proper motion (μ) | RA: +207.608[1] mas/yr Dec.: −47.958[1] mas/yr |
| Parallax (π) | 25.2196 ± 0.0484 mas[1] |
| Distance | 129.3 ± 0.2 ly (39.65 ± 0.08 pc) |
| Absolute magnitude (MV) | 3.73[2] |
| Details | |
| Mass | 1.207±0.060[4] M☉ |
| Radius | 1.71±0.03[1] R☉ |
| Luminosity | 3.020±0.008[1] L☉ |
| Surface gravity (log g) | 4.12[3] cgs |
| Temperature | 5,818+45 −46[1] K |
| Metallicity [Fe/H] | −0.07±0.03[2] dex |
| Rotational velocity (v sin i) | 2.3±0.2[5] km/s |
| Age | 7.5+0.7 −0.8[2] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 215456 is a star in the southern constellation Grus. It is a dim, yellow-hued star that lies just below the normal limit for visibility to the naked eye with an apparent visual magnitude of 6.63.[2] The distance to this star is 129 light years based on parallax, and it has an absolute magnitude of 3.73.[2] It is drifting closer with a radial velocity of −18.9 km/s.[1]
This object is a solar-type main-sequence star with a stellar classification of G0.5V.[3] It is about 7.5[2] billion years old with a projected rotational velocity of 2.3 km/s.[5] The star has 1.2[4] times the mass of the Sun and 1.7[1] times the Sun's radius. The metallicity, or abundance of elements with higher atomic numbers than helium, is slightly below solar.[2] The star is radiating triple the luminosity of the Sun from its photosphere at an effective temperature of 5,818 K.[1]
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