HD 11007

Last updated
HD 11007
Triangulum constellation map.svg
Red circle.svg
Location of HD 11007 on the map (circled)
Observation data
Epoch J2000.0        Equinox J2000.0 (ICRS)
Constellation Triangulum
Right ascension 01h 48m 41.56269s [1]
Declination +32° 41′ 24.7521″ [1]
Apparent magnitude  (V)5.81 [2]
Characteristics
Spectral type F8 V [3]
U−B color index −0.03 [2]
B−V color index +0.54 [2]
Astrometry
Radial velocity (Rv)−24.4±0.3 [4]  km/s
Proper motion (μ)RA: −167.798  mas/yr [1]
Dec.: +296.869  mas/yr [1]
Parallax (π)36.0886 ± 0.0529  mas [1]
Distance 90.4 ± 0.1  ly
(27.71 ± 0.04  pc)
Absolute magnitude  (MV)+3.56 [5]
Details
Mass 1.11 [6]   M☉
Radius 1.67±0.04 [7]   R☉
Luminosity 3.228+0.011
−0.010 [1]   L☉
Surface gravity (log g)4.03±0.03 [8]   cgs
Temperature 6,060±64 [7]   K
Metallicity [Fe/H]−0.20 [9]   dex
Rotational velocity (v sin i)5±3 [10]  km/s
Age 6.6±0.5 [11]   Gyr
Other designations
AG+32°162, BD+31°316, FK5  2120, GC  2195, HD  11007, HIP  8433, HR  523, SAO  54994, LTT  10624, TIC  20931913 [12]
Database references
SIMBAD data

HD 11007 (LTT 10624; HR 523) is a probable astrometric binary [13] located in the northern constellation Triangulum. The primary is faintly visible to the naked eye as a whitish-yellow-hued star with an apparent magnitude of 5.81. [2] The system is located relatively close at a distance of 90.4 light-years based on Gaia DR3 parallax measurements [1] and it is drifting closer with a heliocentric radial velocity of −24.4  km/s . [4] At its current distance, HD 11007's brightness is diminished by an interstellar extinction of 0.09 magnitudes [14] and it has an absolute magnitude of +3.56. [5] It is moving relatively fast across the celestial sphere, [15] having a high proper motion of 341 mas/yr. [1]

The primary has a stellar classification of F8 V, [3] indicating that it is an ordinary F-type main-sequence star that is generating energy via hydrogen fusion at its core. However, it is slightly evolved, being 1.62 magnitudes above the zero age main sequence. [16] It has 111% the mass of the Sun [6] and a slightly enlarged radius 1.67 times that of the Sun. [7] It is slightly over luminous for its class, radiating 3.23 times the luminosity of the Sun [1] from its photosphere at an effective temperature of 6,060  K . [7] HD 11007 A is metal deficient with an iron abundance that is 63.1% solar [9] and it spins modestly with a somewhat constrained projected rotational velocity of approximately 5  km/s . [10] The system is estimated to be 6.6 billion years old; it was suspected to be part of the thick disk population [11] but is now considered to be one of the older members of the thin disk population. [17]

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<span class="mw-page-title-main">HD 193307</span> Star in the constellation Telescopium

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<span class="mw-page-title-main">HD 27022</span> Star in the constellation Camelopardalis

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

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<span class="mw-page-title-main">14 Trianguli</span> Star in the constellation Triangulum

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<span class="mw-page-title-main">HD 201772</span> Star in the constellation Microscopium

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<span class="mw-page-title-main">HD 196737</span> K-type giant; Microscopium

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<span class="mw-page-title-main">HD 22764</span> Double star; Camelopardalis

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<span class="mw-page-title-main">HD 117566</span> High proper motion star; Camelopardalis

HD 117566, also known as HR 5091, is a solitary yellow-hued star located in the northern circumpolar constellation Camelopardalis. It has an apparent magnitude of 5.74, making it faintly visible to the naked eye. This object is relatively close at a distance of 291 light years based on Gaia DR3 parallax measurements but is receding with a heliocentric radial velocity of 14 km/s. At its current distance, HD 117566's brightness is diminished by 0.12 magnitudes due to interstellar dust.

<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 23005</span> Star in Camelopardlis

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<span class="mw-page-title-main">HD 177565</span> Yellow dwarf w. a planet; Corona Australis

HD 177565 is a yellow-hued star located in the southern constellation Corona Australis. It has an apparent magnitude of 6.16, placing it near the limit for naked eye visibility, even under ideal conditions. The object is located relatively close at a distance of 55.3 light-years based on Gaia DR3 parallax measurements, but it is receding rapidly with a heliocentric radial velocity of 60.9 km/s. At its current distance, HD 177565's brightness is diminished by interstellar extinction of 0.07 magnitudes and it as an absolute magnitude of +5.00. A 2017 multiplicity survey failed to detect any stellar companions around the star.

<span class="mw-page-title-main">HD 180134</span> F-type star with a circumstellar disk

HD 180134 is a solitary star located in the southern constellation Telescopium. It has an apparent magnitude of 6.36, placing it near the limit for naked eye visibility, even under ideal conditions. The object is located relatively close at a distance of 148.4 light-years based on Gaia DR3 parallax measurements, and it is drifting closer with a heliocentric radial velocity of −22.5 km/s. At its current distance, HD 180134's brightness is diminished by two-tenths of a magnitude due to interstellar extinction and it has an absolute magnitude of +3.09.

References

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  2. 1 2 3 4 Imagawa, Fumihiko (February 1967). "Observational Results of Three-color Photometry for F-type Stars (II)". Memoirs of the College of Science, University of Kyoto. Series A. 31 (2): 93–100.
  3. 1 2 Harlan, E. A. (June 1974). "MK classifications for F-and G-type stars. 3". The Astronomical Journal. 79: 682. Bibcode:1974AJ.....79..682H. doi: 10.1086/111597 . ISSN   0004-6256.
  4. 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.
  5. 1 2 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.
  6. 1 2 Lambert, David L.; Reddy, Bacham E. (2004). "Lithium abundances of the local thin disc stars". Monthly Notices of the Royal Astronomical Society. 349 (2): 757–767. arXiv: astro-ph/0401259 . Bibcode:2004MNRAS.349..757L. doi: 10.1111/j.1365-2966.2004.07557.x . S2CID   118931004.
  7. 1 2 3 4 Masana, E.; Jordi, C.; Ribas, I. (10 April 2006). "Effective temperature scale and bolometric corrections from 2MASS photometry". Astronomy & Astrophysics. 450 (2): 735–746. arXiv: astro-ph/0601049 . Bibcode:2006A&A...450..735M. doi: 10.1051/0004-6361:20054021 . eISSN   1432-0746. ISSN   0004-6361. S2CID   15278668.
  8. ↑ Aguilera-Gómez, Claudia; Ramírez, Iván; Chanamé, Julio (June 2018). "Lithium abundance patterns of late-F stars: an in-depth analysis of the lithium desert". Astronomy & Astrophysics. 614: A55. arXiv: 1803.05922 . Bibcode:2018A&A...614A..55A. doi: 10.1051/0004-6361/201732209 . eISSN   1432-0746. ISSN   0004-6361. S2CID   62799777.
  9. 1 2 Mishenina, T; Pignatari, M; Gorbaneva, T; Travaglio, C; Côté, B; Thielemann, F-K; Soubiran, C (October 21, 2019). "Enrichment of the Galactic disc with neutron-capture elements: Mo and Ru". Monthly Notices of the Royal Astronomical Society. 489 (2): 1697–1708. arXiv: 1908.02992 . Bibcode:2019MNRAS.489.1697M. doi: 10.1093/mnras/stz2202 . ISSN   0035-8711. S2CID   199511206.
  10. 1 2 Balachandran, Suchitra (May 1990). "Lithium depletion and rotation in main-sequence stars". The Astrophysical Journal. 354. American Astronomical Society: 310. Bibcode:1990ApJ...354..310B. doi: 10.1086/168691 . ISSN   0004-637X. S2CID   120769481.
  11. 1 2 Liu, Wilson M.; Chaboyer, Brian (December 2000). "The Relative Age of the Thin and Thick Galactic Disks". The Astrophysical Journal. 544 (2): 818–829. Bibcode:2000ApJ...544..818L. doi: 10.1086/317231 . ISSN   0004-637X. S2CID   14270478.
  12. ↑ "HD 11007". 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. S2CID   14878976.
  14. ↑ Gontcharov, George A.; Mosenkov, Aleksandr V. (28 September 2017). "Verifying reddening and extinction for Gaia DR1 TGAS main sequence stars". Monthly Notices of the Royal Astronomical Society. 472 (4): 3805–3820. arXiv: 1709.01160 . Bibcode:2017MNRAS.472.3805G. doi: 10.1093/mnras/stx2219 . eISSN   1365-2966. ISSN   0035-8711. S2CID   118879856.
  15. ↑ Ivanov, G. A. (June 2002). "Cross-identifications of stars with high proper motion". Kinematika i Fizika Nebesnykh Tel. 18: 287–288. Bibcode:2002KFNT...18..287I. ISSN   0233-7665.
  16. ↑ Nordström, B.; Mayor, M.; Andersen, J.; Holmberg, J.; Pont, F.; Jørgensen, B. R.; Olsen, E. H.; Udry, S.; Mowlavi, N. (16 April 2004). "The Geneva-Copenhagen survey of the Solar neighbourhood". Astronomy & Astrophysics. 418 (3): 989–1019. arXiv: astro-ph/0405198 . Bibcode:2004A&A...418..989N. doi: 10.1051/0004-6361:20035959 . eISSN   1432-0746. ISSN   0004-6361. S2CID   11027621.
  17. ↑ Mishenina, T. V.; Soubiran, C.; Kovtyukh, V. V.; Korotin, S. A. (May 2004). "On the correlation of elemental abundances with kinematics among galactic disk stars". Astronomy & Astrophysics. 418 (2): 551–562. arXiv: astro-ph/0401234 . Bibcode:2004A&A...418..551M. doi: 10.1051/0004-6361:20034454 . ISSN   0004-6361. S2CID   17514939.
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