HD 29399

HD 29399
Location of HD 29399 (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Reticulum
Right ascension 04h 33m 33.949s[1]
Declination −62° 49′ 25.24″[1]
Apparent magnitude (V) 5.780[2]
Characteristics
Spectral type K1III[3]
U−B color index +2.111[4]
B−V color index +0.332[4]
Astrometry
Radial velocity (Rv)31.56±0.13[1] km/s
Proper motion (μ) RA: −117.58±0.04[1] mas/yr
Dec.: −18.73±0.04[1] mas/yr
Parallax (π)22.7240 ± 0.0339 mas[1]
Distance143.5 ± 0.2 ly
(44.01 ± 0.07 pc)
Details
Mass1.17±0.10[5] M☉
Radius4.47±0.02[5] R☉
Luminosity10.04±0.20[5] L☉
Surface gravity (log g)3.25±0.13[5] cgs
Temperature4,845±52[5] K
Metallicity [Fe/H]0.14±0.03[5] dex
Rotational velocity (v sin i)2.48[6] km/s
Age6.20±0.5[5] Gyr
Other designations
CD−63°153, HD 29399, HIP 21253, HR 1475, SAO 249054[7]
Database references
SIMBADdata

HD 29399 is a binary star in the constellation Reticulum. With an apparent visual magnitude of 5.78, it is visible to the naked eye under good viewing conditions. From its parallax measured by the Gaia, it is located at a distance of 144 light-years (44 parsecs) from Earth.

This star is a K-type giant with an spectral type of K1III. Its magnitude 9.2 companion is located at a separation of 31.9 arcseconds.[8] In 2022, a gas giant planet was discovered via the radial velocity method orbiting the primary star.[5]

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  4. ^ a b Cite error: The named reference paunzen2022 was invoked but never defined (see the help page).
  5. ^ a b c d e f g h Cite error: The named reference Pezzotti2022 was invoked but never defined (see the help page).
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  8. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).