| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Ara |
| Right ascension | 17h 10m 04.912s[1] |
| Declination | −56° 26′ 57.38″[1] |
| Apparent magnitude (V) | 8.22[2] |
| Characteristics | |
| Spectral type | G3 IV |
| B−V color index | 0.71 |
| Astrometry | |
| Proper motion (μ) | RA: 31.23 ± 0.75[1] mas/yr Dec.: -124.69 ± 0.62[1] mas/yr |
| Parallax (π) | 15.44 ± 0.84 mas[1] |
| Distance | 210 ± 10 ly (65 ± 4 pc) |
| Absolute magnitude (MV) | 4.12[3] |
| Details | |
| Mass | 1.06 +0.11 −0.09[2] M☉ |
| Radius | 1.27 +0.1 −0.09[2] R☉ |
| Luminosity | 1.88[3] L☉ |
| Temperature | 5714 (± 30)[2] K |
| Metallicity | +0.26 (± 0.04)[2] |
| Age | 9.28 +2.18 −2.36[2] years |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 154672 is a yellow subgiant (spectral type G3 IV). It is about 65 parsecs away from the Sun that is larger than, but of a similar mass to, the Sun. However, HD 154672 is much older. The star is very metal-rich, which is one of the reasons why it was targeted for a planet search by the N2K Consortium, which discovered the gas giant planet HD 154672 b using Doppler Spectroscopy; the discovery was reported in October 2008.[3] The N2K collaboration chose HD 154672 primarily because it aimed to discover the correlation between a star's metallicity and the mass of orbiting planets.[3]
HD 154672 was targeted by the Magellan Telescopes. It is the host of the first planet discovered from the telescopes by N2K.[3]
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