HD 134606

HD 134606
Observation data
Epoch J2000      Equinox J2000
Constellation Apus
Right ascension 15h 15m 15.04464s[1]
Declination −70° 31′ 10.6449″[1]
Apparent magnitude (V) 6.86[2]
Characteristics
Spectral type G6 IV[3]
B−V color index 0.740±0.001[2]
Astrometry
Radial velocity (Rv)+1.94±0.12[1] km/s
Proper motion (μ) RA: −177.871 mas/yr[1]
Dec.: −164.709 mas/yr[1]
Parallax (π)37.3020 ± 0.0182 mas[1]
Distance87.44 ± 0.04 ly
(26.81 ± 0.01 pc)
Absolute magnitude (MV)4.74[2]
Details[4]
Mass1.046+0.070
−0.059 M☉
Radius1.158+0.039
−0.036 R☉
Luminosity1.161+0.071
−0.049 L☉
Surface gravity (log g)4.330+0.044
−0.041 cgs
Temperature5,576+86
−85 K
Metallicity [Fe/H]+0.343+0.081
−0.084 dex
Rotation42.0±3.9 d
Age7.3+3.6
−3.4 Gyr
Other designations
CD−70° 1258, GC 20455, HD 134606, HIP 74653, SAO 257257, LTT 6064, 2MASS J15151504-7031105[5]
Database references
SIMBADdata

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.[2] 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.[1]

This is an evolving G-type subgiant star with a stellar classification of G6 IV[3] and is not considered active, having a chromospheric activity index of −5.04.[6] It has about the same[7] mass as the Sun but is 25% more luminous.[2] The photosphere is radiating energy at an effective temperature of 5,614 K.[7] It has a higher than solar metallicity – a term astronomers use to describe the abundance of elements other than hydrogen and helium.[7]

There is a companion star of spectral type M3V at a separation of ~1500 AU, designated L 72-1.[8][4] This companion presents a bimodal distribution of the Gaia DR3 G-band light-curve, indicating that it is a close binary.[9]

  1. ^ a b c d e f Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Gray2006 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Li2024 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Jenkins2006 was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Tsantaki2013 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference SIMBAD2 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference multiplicity was invoked but never defined (see the help page).