HD 27274

Last updated
HD 27274
Observation data
Epoch J2000.0        Equinox J2000.0
Constellation Dorado
Right ascension 04h 15m 56.90154s [1]
Declination −53° 18′ 35.3067″ [1]
Apparent magnitude  (V)7.63 [2]
Characteristics
Spectral type K4.5 Vk: [3]
U−B color index +1.08 [2]
B−V color index +1.12 [2]
Astrometry
Radial velocity (Rv)−23.4±0.3 [4]  km/s
Proper motion (μ)RA: +784.529  mas/yr [1]
Dec.: +396.695  mas/yr [1]
Parallax (π)76.6638 ± 0.0146  mas [1]
Distance 42.544 ± 0.008  ly
(13.044 ± 0.002  pc)
Absolute magnitude  (MV)+7.06 [5]
Details
Mass 0.73±0.09 [6]   M☉
Radius 0.70±0.05 [6]   R☉
Luminosity 19.6±0.5% [1]   L☉
Surface gravity (log g)4.64 [7]   cgs
Temperature 4,602±80 [7]   K
Metallicity [Fe/H]+0.16±0.01 [7]   dex
Rotational velocity (v sin i)1 [8]  km/s
Age 4.5 [9]   Gyr
Other designations
CD−53° 889, CPD−53° 672, GC  5176, GJ  167, HD  27274, HIP  19884, SAO  233456 [10]
Database references
SIMBAD data
ARICNS data

HD 27274, also known as Gliese 167, is a solitary, [11] orange hued star located in the southern constellation Dorado. It has an apparent magnitude of 7.63, [2] making it readily visible in binoculars, but not to the naked eye. Based on parallax measurements from the Gaia spacecraft, the star is known to be located 42.5 light-years (13.02 parsecs) away from the Solar System [1] However, it is drifting closer with a heliocentric radial velocity of −23  km/s . At its current distance, HD 27274 is dimmed down by 0.05 magnitudes due to interstellar dust. [12]

HD 27274 has a stellar classification of K4.5 Vk:, [3] indicating that it is a K-type main-sequence star with interstellar absorption features. However, there is uncertainty behind the classification. At present it has 73% the mass of the Sun and 70% of its radius. [6] It has an effective temperature of 4,602  K , [7] but its small size yields a luminosity only 19.6% that of the Sun. [1] HD 27274 is metal enriched, having an iron abundance 44.6% above solar levels. [7] The star spins with a projected rotational velocity of 1  km/s , [8] and is estimated to be 4.5 billion years old. [9] This is similar to the Sun's current age (4.6 Gyr).

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<span class="mw-page-title-main">Epsilon Mensae</span> Star in the constellation Mensa

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HD 10800, also known as HR 512 or Gliese 67.1, is a triple star located in the southern circumpolar constellation Octans. It has a combined apparent magnitude of 5.87, allowing it to be faintly seen with the naked eye. The system is relatively close at a distance of 88.1 light years but is drifting closer with a heliocentric radial velocity −1.1 km/s.

<span class="mw-page-title-main">WZ Columbae</span> Star in the constellation of Columba

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<span class="mw-page-title-main">AF Columbae</span> Star in the constellation of Columba

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HD 58425, also known as HR 2830, is an astrometric binary located in the northern circumpolar constellation Camelopardalis. It is faintly visible to the naked eye as an orang point of light at an apparent magnitude of 5.64. Based on parallax measurements from Gaia DR3, the system is estimated to be 470 light years away from Earth. It appears to be rapidly receding from the Sun, having a heliocentric radial velocity of 58.6 km/s. HD 58425 is listed as 54 Ursae Majoris in Johann Hevelius' catalogue, but this was dropped after the official IAU's official constellation borders were drawn.

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HD 104555, also known as HR 4595, is a star located in the southern circumpolar constellation Octans. It has an apparent magnitude of 6.02, allowing it to be faintly visible to the naked eye. Based on parallax measurements from Gaia Data Release 3, it is estimated to be 336 light years distant. It appears to be receding from the Solar System, having a heliocentric radial velocity of 17.1 km/s.

HD 43899, also designated as HR 2263, is a solitary, orange hued star located in the southern constellation Columba, the dove. It has an apparent magnitude of 5.53, allowing it to be faintly visible to the naked eye. Based on parallax measurements from the Gaia spacecraft, the object is estimated to be 284 light years distant. It appears to be rapidly receding with a heliocentric radial velocity of 66.5 km/s. Eggen (1993) lists HD 43899 as an old disk star and its kinematics match with that of the ζ Herculis moving group.

<span class="mw-page-title-main">HD 40091</span> Star in the constellation Columba

HD 40091, also known as HR 2082, is a solitary star located in the southern constellation Columba, the dove. It has an apparent magnitude of 5.54, 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 501 light years distant. However, it is rapidly receding with a high heliocentric radial velocity of 114 km/s.

28 Leonis Minoris is a solitary, orange hued star located in the northern constellation Leo Minor, the lesser lion. It has an apparent magnitude of 5.5, allowing it to be faintly visible to the naked eye. Based on parallax measurements from the Gaia satellite, it is estimated to be 480 light years distant. 28 LMi is approaching the Solar System with a heliocentric radial velocity of −24 km/s. At its current distance, the star brightness is diminished by 0.14 magnitudes due to interstellar dust.

HD 191220, also known as HR 7698, is a solitary white hued star located in the southern circumpolar constellation Octans. It has an apparent magnitude of 6.14, placing it near the limit for naked eye visibility. The object is located relatively close at a distance of 245 light years based on Gaia DR3 parallax measurements but is slowly receding with a heliocentric radial velocity of 0.1 km/s. At its current distance, HD 191220's brightness is diminished by 0.22 magnitudes due to interstellar dust.

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

HD 22764, also known as HR 1112, is an orange hued star located in the northern circumpolar constellation Camelopardalis. It has an apparent magnitude of 5.78, allowing it to be faintly visible to the naked eye. The object is located relatively far at a distance of approximately 1,770 light years based on Gaia DR3 parallax measurements but is approaching the Solar System with a heliocentric radial velocity of −12.5 km/s. At its current distance, HD 22764's brightness is diminished by 0.66 magnitudes due to interstellar dust.

<span class="mw-page-title-main">HD 45866</span> Star in the constellation of Camelopardalis

HD 45866, also known as HR 2363 is a solitary star located in the northern circumpolar constellation Camelopardalis. It is faintly visible to the naked eye as an orange-hued star with an apparent magnitude of 5.72. Gaia DR3 parallax measurements place it 726 light years away and it is currently approaching the Solar System with a heliocentric radial velocity of −16.6 km/s. At its current distance, HD 45866's brightness is diminished by 0.26 magnitudes due to interstellar dust. It has an absolute magnitude of −0.89

HD 200779 is a solitary star located in the equatorial constellation Equuleus, the foal. It has an apparent magnitude of 8.27, making it readily visible in binoculars but not to the naked eye. The object is located relatively close at a distance of 49 light years based on Gaia DR3 parallax measurements, and it is approaching rapidly with a heliocentric radial velocity of −67 km/s. It is classified as a high proper motion star, with a total proper motion of 569 mas/yr.

References

  1. 1 2 3 4 5 6 7 8 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv: 2208.00211 . Bibcode:2023A&A...674A...1G. doi: 10.1051/0004-6361/202243940 . S2CID   244398875. Gaia DR3 record for this source at VizieR.
  2. 1 2 3 4 Koen, C.; Kilkenny, D.; van Wyk, F.; Marang, F. (21 April 2010). "UBV(RI)CJHKobservations ofHipparcos-selected nearby stars". Monthly Notices of the Royal Astronomical Society. 403 (4): 1949–1968. Bibcode:2010MNRAS.403.1949K. doi: 10.1111/j.1365-2966.2009.16182.x . eISSN   1365-2966. ISSN   0035-8711.
  3. 1 2 Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Bubar, E. J.; McGahee, C. E.; O'Donoghue, A. A.; Knox, E. R. (2 June 2006). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc--The Southern Sample". The Astronomical Journal. 132 (1): 161–170. arXiv: astro-ph/0603770 . Bibcode:2006AJ....132..161G. doi: 10.1086/504637 . eISSN   1538-3881. ISSN   0004-6256.
  4. ↑ 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. ↑ 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.
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  7. 1 2 3 4 5 Casagrande, L.; Schönrich, R.; Asplund, M.; Cassisi, S.; Ramírez, I.; Meléndez, J.; Bensby, T.; Feltzing, S. (26 May 2011). "New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s): Improved astrophysical parameters for the Geneva-Copenhagen Survey⋆". Astronomy & Astrophysics. 530: A138. arXiv: 1103.4651 . Bibcode:2011A&A...530A.138C. doi: 10.1051/0004-6361/201016276 . eISSN   1432-0746. ISSN   0004-6361.
  8. 1 2 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.
  9. 1 2 Jenkins, J. S.; Jones, H. R. A.; Tinney, C. G.; Butler, R. P.; McCarthy, C.; Marcy, G. W.; Pinfield, D. J.; Carter, B. D.; Penny, A. J. (11 October 2006). "An activity catalogue of southern stars". Monthly Notices of the Royal Astronomical Society. 372 (1): 163–173. arXiv: astro-ph/0607336 . Bibcode:2006MNRAS.372..163J. doi: 10.1111/j.1365-2966.2006.10811.x . eISSN   1365-2966. ISSN   0035-8711.
  10. ↑ "Gliese 167". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved August 23, 2022.
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  12. ↑ 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.
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