HD 134606
HD 134606 is a yellow-hued star with a planetary system, positioned in the southern constellation of Apus. It is below the nominal limit for visibility with the naked eye, having an apparent visual magnitude of 6.86. Based upon an annual parallax shift of 37.3 mas, it is located 87.44 light-years away. The star appears to be moving further from the Earth with a heliocentric radial velocity of +1.9 km/s.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Apus |
| Right ascension | 15h 15m 15.04464s |
| Declination | −70° 31′ 10.6449″ |
| Apparent magnitude (V) | 6.86 |
| Characteristics | |
| Spectral type | G6 IV |
| B−V color index | 0.740±0.001 |
| Astrometry | |
| Radial velocity (Rv) | +1.94±0.12 km/s |
| Proper motion (μ) | RA: −177.871 mas/yr Dec.: −164.709 mas/yr |
| Parallax (π) | 37.3020 ± 0.0182 mas |
| Distance | 87.44 ± 0.04 ly (26.81 ± 0.01 pc) |
| Absolute magnitude (MV) | 4.74 |
| Details | |
| Mass | 1.046+0.070 −0.059 M☉ |
| Radius | 1.158+0.039 −0.036 R☉ |
| Luminosity | 1.161+0.071 −0.049 L☉ |
| Surface gravity (log g) | 4.330+0.044 −0.041 cgs |
| Temperature | 5,576+86 −85 K |
| Metallicity [Fe/H] | +0.343+0.081 −0.084 dex |
| Rotation | 42.0±3.9 d |
| Age | 7.3+3.6 −3.4 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
This is an evolving G-type subgiant star with a stellar classification of G6 IV and is not considered active, having a chromospheric activity index of −5.04. It has about the same mass as the Sun but is 25% more luminous. The photosphere is radiating energy at an effective temperature of 5,614 K. It has a higher than solar metallicity – a term astronomers use to describe the abundance of elements other than hydrogen and helium.
There is a red dwarf companion star of spectral type M3V at a separation of ~1500 AU, designated L 72-1.