HD 34266

Last updated
HD 34266
Columba constellation map.svg
Red circle.svg
Location of HD 34266 (circled)
Observation data
Epoch J2000       Equinox J2000
Constellation Columba
Right ascension 05h 14m 28.84578s [1]
Declination −35° 58′ 37.1904″ [1]
Apparent magnitude  (V)5.73±0.01 [2]
Characteristics
Evolutionary stage Red giant branch [3]
Spectral type G8 III [4]
B−V color index +1.01 [5]
Astrometry
Radial velocity (Rv)13.2±2.9 [6]  km/s
Proper motion (μ)RA: +11.005  mas/yr [1]
Dec.: +13.944  mas/yr [1]
Parallax (π)6.046 ± 0.0316  mas [1]
Distance 539 ± 3  ly
(165.4 ± 0.9  pc)
Absolute magnitude  (MV)−0.16 [7]
Details [8]
Mass 3.42±0.14  M☉
Radius 16.2±0.4  R☉
Luminosity 144±4  L☉
Surface gravity (log g)2.68±0.12  cgs
Temperature 4,970±49  K
Metallicity [Fe/H]+0.04±0.04  dex
Rotational velocity (v sin i)2.3±1.2 [9]  km/s
Age 490 [10]   Myr
Other designations
6 G. Columbae [11] , CD−36°2127, CPD−36°676, GC  6421, HD  34266, HIP  24426, HR  1721, SAO  195683 [12]
Database references
SIMBAD data

HD 34266, also known as HR 1721 is a solitary, [13] yellow hued star located in the southern constellation Columba, the dove. It has an apparent magnitude of 5.73, [2] making it faintly visible to the naked eye under ideal conditions. Based on Gaia DR3 parallax measurements, the object is located 539 light years away. [1] It appears to be drifting away from the Solar System, having a heliocentric radial velocity of 13.2  km/s . [6]

This is an evolved giant star that is currently on the red giant branch, [3] fusing hydrogen in a shell around an inert helium core. It has a stellar classification of G8 III. [4] HD 34266 is calculated to be 490 million years old, [10] almost 10 times younger than the Sun. However, it already left the main sequence due to a mass of 3.42  M☉. [8] HD 34266 has expanded to 16.2 times the Sun's girth and now radiates 144 times the luminosity of the Sun from its photosphere at an effective temperature of 4,970  K . [8] HD 34266 has a near solar metallicity and spins modestly with a projected rotational velocity of 2.3  km/s . [9]

Related Research Articles

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HD 88836, also known as HR 4019, is a solitary, yellow-hued star located in the southern constellation Antlia. It has an apparent magnitude of 6.32, placing it near the limit for naked eye visibility. Based on an annual parallax shift of 7.019 mas, the object is estimated to be 465 light years away from the Solar System. Its distance from the Sun does not appear to be changing, having a radial velocity of 0 km/s.

<span class="mw-page-title-main">Beta Coronae Australis</span> Star in the constellation Corona Australis

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HD 173791 is a solitary yellow hued star located in the southern constellation Telescopium. It has an apparent magnitude of 5.80, allowing it to be viewed with the naked eye under suitable viewing conditions. Parallax measurements place the object at a distance of 364 light years, and it is currently receding from the Solar System with a heliocentric radial velocity of 9.7 km/s.

<span class="mw-page-title-main">Mu Coronae Australis</span> Star in the constellation Corona Australis

Mu Coronae Australis, Latinized from μ Coronae Australis, is a solitary yellow-hued star located in the southern constellation Corona Australis. It has an apparent magnitude of 5.22, making it faintly visible to the naked eye. Gaia DR3 parallax measurements put it 386 light years away and is currently approaching the Solar System with a heliocentric radial velocity of −18.2 km/s. At its current distance, Mu CrA's brightness is diminished by 0.31 magnitudes due to interstellar dust. It has an absolute magnitude of −0.22.

<span class="mw-page-title-main">Q Scorpii</span> High proper motion binary star system in the constellation of Scorpius

Q Scorpii, also designated as HD 159433, is an astrometric binary located in the southern zodiac constellation Scorpius. It has an apparent magnitude of 4.27, making it readily visible to the naked eye under ideal conditions. It lies in the tail of Scorpius, between the stars λ Scorpii and μ Scorpii and is located 7′ away from the faint globular cluster Tonantzintla 2. Based on parallax measurements from Gaia DR3, the system is estimated to be 158 light years distant, but is approaching the Solar System with a heliocentric radial velocity of −49 km/s.

HD 86267, also known as HR 3932, is a solitary orange-hued star located in the southern constellation Antlia. It has an apparent magnitude of 5.82, allowing it to be faintly seen with the naked eye. Parallax measurements place it a distance of 514 light years and it is currently receding with a heliocentric radial velocity of 3.7 km/s.

HD 126209, also known as HR 5389, is a solitary, orange hued star located in the southern circumpolar constellation Apus. It has an apparent magnitude of 6.06, making it faintly visible to the naked eye under ideal conditions. Based on parallax measurements from the Gaia spacecraft, the object is estimated to be 560 light years distant. It appears to be approaching the Solar System with a fairly constrained heliocentric radial velocity of −8.1 km/s. De Mederios et al. (2014) found the radial velocity to be variable, making it a probable spectroscopic binary. Eggen (1993) lists it as a member of the old disk population.

HD 30080, also known as HR 1509, is a solitary, orange hued star located in the southern constellation Caelum, the chisel. It has an apparent magnitude of 5.66, allowing it to be faintly visible to the naked eye. Parallax measurements from Gaia DR3 place the object at a distance of 612 light years. It appears to be approaching the Solar System with a heliocentric radial velocity of −3.8 km/s. Eggen (1989) lists it as a member of the thick disk population.

HD 75116, also known as HR 3491, is a solitary, orange hued star in the southern circumpolar constellation Volans, the flying fish. It has an apparent magnitude of 6.31, placing it near the limit for naked eye visibility. Parallax measurements from the Gaia spacecraft place the star relatively far at a distance of 930 light years. It appears to be approaching the Solar System, having a heliocentric radial velocity of −17.5 km/s.

<span class="mw-page-title-main">HD 76236</span> Star in the constellation Chamaeleon

HD 76236, also designated as HR 3543 or rarely 11 G. Chamaeleontis, is a solitary star located in the southern circumpolar constellation Chamaeleon. It is faintly visible to the naked eye as an orange-hued star with an apparent magnitude of 5.77. Based on parallax measurements from the Gaia satellite, the object is estimated to be 612 light years away. Currently, it is receding with a heliocentric radial velocity of 7 km/s. At its current distance, HD 76236's brightness is diminished by 0.39 magnitudes due to interstellar dust. It has an absolute magnitude of −0.13.

HD 194612 is a solitary orange hued star located in the southern circumpolar constellation Octans. It has an apparent magnitude of 5.9, making it visible to the naked eye under ideal conditions. Parallax measurements place it at a distance of 760 light years and it has a low heliocentric radial velocity of 0.3 km/s.

HD 33519, also known as HR 1682, is a probable spectroscopic binary located in the southern circumpolar constellation Mensa. It is one of the stars near the limit of naked eye visibility, having an apparent magnitude of 6.28. The system is relatively far at a distance of 940 light years but is approaching with a heliocentric radial velocity of −2.5 km/s. However, this value is poorly constrained.

HD 167714, also known as HR 6837, is a solitary, orange hued star located in the southern circumpolar constellation Octans. It has apparent magnitude of 5.95, allowing it to be faintly visible to the naked eye. Based on parallax measurements from Gaia, the object is estimated to be 359 light years distant. With a heliocentric radial velocity of −13.9 km/s, it is approaching the Solar System.

HD 222060, also known as HR 8957, is a solitary, orange hued star located in the southern circumpolar constellation Octans. It has an apparent magnitude of 5.98, allowing it to be faintly visible to the naked eye. Based on parallax measurements from GAIA, the object is estimated to be 536 light years distant. It appears to be slowly receding from the Solar System, having a heliocentric radial velocity of 2.3 km/s.

HD 30669 is a yellowish-orange hued star located in the southern constellation Caelum, the chisel. It has an apparent magnitude of 9.11, making it readily visible in small telescopes but not to the naked eye. The object is relatively close at a distance of 188 light years, based on parallax measurements from Gaia DR3. Its distance from the Solar System is rapidly increasing, having a heliocentric radial velocity of 66 km/s.

HD 31529, also known as HR 1584, is a solitary, orange hued star located in the southern constellation Caelum, the chisel. It has an apparent magnitude of 6.09, making it faintly visible to the naked eye if viewed under ideal conditions. This object is located relatively far at a distance of 932 light years based on parallax measurements from Gaia DR3, but is receding with a heliocentric radial velocity of 28.4 km/s. Eggen (1989) lists it as a member of the old disk population.

<span class="mw-page-title-main">HD 198716</span> Star in the constellation of Microscopium

HD 198716, also known as HR 7987 or 33 G. Microscopii, is a solitary star located in the southern constellation Microscopium. Eggen (1993) lists it as a member of the Milky Way's old disk population.

<span class="mw-page-title-main">HD 168592</span> Star in the constellation of Corona Australis

HD 168592, also designated as HR 6862 or rarely 7 G. Coronae Australis, is a solitary star located in the southern constellation Corona Australis. It is faintly visible to the naked eye as an orange-hued star with an apparent magnitude of 5.07. Gaia DR3 parallax measurements place it at a distance of 490 light years and is currently receding with a heliocentric radial velocity of 18 km/s. At its current distance, HD 168592's brightness is diminished by 0.38 magnitudes due to interstellar dust. It has an absolute magnitude of −0.76.

<span class="mw-page-title-main">HD 101917</span> High proper motion star

HD 101917, also designated as HR 4509, or rarely 34 G. Chamaeleontis, is a solitary star located in the southern circumpolar constellation Chamaeleon. It has an apparent magnitude of 6.38, placing it near the limit for naked eye visibility. The object is located relatively close at a distance of 185 light years based on Gaia DR3 parallax measurements but is receding with a heliocentric radial velocity of 33 km/s. At its current distance, HD 101917's brightness is diminished by 0.28 magnitudes due to interstellar dust. It has an absolute magnitude of +2.69.

References

  1. 1 2 3 4 5 6 Vallenari, A.; et al. (Gaia Collaboration) (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics . arXiv: 2208.00211 . doi: 10.1051/0004-6361/202243940 . Gaia DR3 record for this source at VizieR.
  2. 1 2 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. ISSN   0004-6361.
  3. 1 2 Jones, M. I.; Jenkins, J. S.; Rojo, P.; Melo, C. H. F. (December 2011). "Study of the impact of the post-MS evolution of the host star on the orbits of close-in planets: I. Sample definition and physical properties⋆⋆⋆". Astronomy & Astrophysics. 536: A71. arXiv: 1110.6459 . Bibcode:2011A&A...536A..71J. doi: 10.1051/0004-6361/201117887 . ISSN   0004-6361.
  4. 1 2 Houk, N. (1982). Michigan Catalogue of Two-dimensional Spectral Types for the HD stars. Volume III: Declinations −40° to −26°. Bibcode:1982mcts.book.....H.
  5. ↑ Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewski, W. Z. (1 January 1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99–110. Bibcode:1966CoLPL...4...99J.
  6. 1 2 Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv: 1606.08053 . Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. eISSN   1562-6873. ISSN   1063-7737. S2CID   119231169.
  7. ↑ Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv: 1108.4971 . Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. eISSN   1562-6873. ISSN   1063-7737. S2CID   119257644.
  8. 1 2 3 Ottoni, G.; Udry, S.; Ségransan, D.; Buldgen, G.; Lovis, C.; Eggenberger, P.; Pezzotti, C.; Adibekyan, V.; Marmier, M.; Mayor, M.; Santos, N. C.; Sousa, S. G.; Lagarde, N.; Charbonnel, C. (January 2022). "CORALIE radial-velocity search for companions around evolved stars (CASCADES): I. Sample definition and first results: Three new planets orbiting giant stars". Astronomy & Astrophysics. 657: A87. arXiv: 2201.01528 . Bibcode:2022A&A...657A..87O. doi: 10.1051/0004-6361/202040078 . eISSN   1432-0746. ISSN   0004-6361.
  9. 1 2 De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (January 2014). "A catalog of rotational and radial velocities for evolved stars". Astronomy & Astrophysics. 561: A126. arXiv: 1312.3474 . Bibcode:2014A&A...561A.126D. doi: 10.1051/0004-6361/201220762 . eISSN   1432-0746. ISSN   0004-6361.
  10. 1 2 Dotter, Aaron; Chaboyer, Brian; Jevremović, Darko; Kostov, Veselin; Baron, E.; Ferguson, Jason W. (September 2008). "The Dartmouth Stellar Evolution Database". The Astrophysical Journal Supplement Series. 178 (1): 89–101. arXiv: 0804.4473 . Bibcode:2008ApJS..178...89D. doi: 10.1086/589654 . eISSN   1538-4365. ISSN   0067-0049.
  11. ↑ Gould, Benjamin Apthorp (1878). "Uranometria Argentina : brillantez y posicion de las estrellas fijas, hasta la septima magnitud, comprendidas dentro de cien grados del polo austral : con atlas". Resultados del Observatorio Nacional Argentino. 1. Bibcode:1879RNAO....1.....G.
  12. ↑ "HR 1721". SIMBAD . Centre de données astronomiques de Strasbourg.
  13. ↑ Eggleton, P. P.; Tokovinin, A. A. (11 September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869–879. arXiv: 0806.2878 . Bibcode:2008MNRAS.389..869E. doi: 10.1111/j.1365-2966.2008.13596.x . eISSN   1365-2966. ISSN   0035-8711.
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