HD 145377

HD 145377
Observation data
Epoch J2000      Equinox J2000
Constellation Scorpius
Right ascension 16h 11m 36.44650s[1]
Declination −27° 04′ 41.4338″[1]
Apparent magnitude (V) 8.10[2]
Characteristics
Spectral type G3V[3]
Apparent magnitude (B) 8.73[2]
Apparent magnitude (J) 7.014±0.018[4]
Apparent magnitude (H) 6.797±0.040[4]
Apparent magnitude (K) 6.706±0.018[4]
B−V color index 0.63[2]
Astrometry
Radial velocity (Rv)+11.610±0.0011[5] km/s
Proper motion (μ) RA: +21.786[1] mas/yr
Dec.: +13.039[1] mas/yr
Parallax (π)18.6669 ± 0.0498 mas[1]
Distance174.7 ± 0.5 ly
(53.6 ± 0.1 pc)
Absolute magnitude (MV)4.31[6]
Details
Mass1.129±0.022[7] M☉
Radius1.05±0.02 R☉[8]
1.12±0.03[9] R☉
Luminosity1.56±0.17 L☉[6]
1.43±0.04[9] L☉
Surface gravity (log g)4.38±0.03[9] cgs
Temperature6,046±15[6] K
Metallicity [Fe/H]0.12±0.01[6] dex
Rotation12 days[6]
Rotational velocity (v sin i)3.85[6] km/s
Age0.857±0.732[6] Gyr[7]
2.90±1.20[9] Gyr
Other designations
CD−26°11249, HD 145377, HIP 79346, SAO 184208, PPM 265238, GSC 06801-00585, 2MASS J16113644-2704414[10]
Database references
SIMBADdata
Exoplanet Archivedata

HD 145377 is a star in the southern constellation Scorpius. It has an apparent visual magnitude of 8.10[2] and can be viewed with a small telescope. The star is located at a distance of 175 light years from the Sun based on parallax, and it is drifting further away with a radial velocity of +11.6.[5] The absolute magnitude of this star is 4.31,[6] indicating it would be visible to the naked eye if it were at a distance of 10 parsecs.

This is an ordinary G-type main-sequence star with a stellar classification of G3V,[3] which indicates it is undergoing core hydrogen fusion. It is 5–12% larger and 13% more massive than the Sun. It may be younger than the Sun, with age estimates in the range of 1–3 billion years. The star is spinning with a projected rotational velocity of 3.85 km/s, giving it a rotation period of ~12 days.[6] The abundance of elements more massive than helium – what astronomers term the star's metallicity – is ~31% higher than in the Sun.[6] The star is radiating around 43% to 56% of the luminosity of the Sun from its photosphere at an effective temperature of 6,046 K.[6]

  1. ^ a b c d e Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Høg_et_al_2000 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference houk1979 was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference Cutri_et_al_2003 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Soubiran_et_al_2018 was invoked but never defined (see the help page).
  6. ^ a b c d e f g h i j k Cite error: The named reference Moutou_et_al_2009 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference DelgadoMena_et_al_2019 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Stassun_et_al_2017 was invoked but never defined (see the help page).
  9. ^ a b c d Cite error: The named reference Bonfanti_et_al_2016 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).