HD 28454

Last updated
HD 28454
Observation data
Epoch J2000.0        Equinox J2000.0 (ICRS)
Constellation Caelum [1]
Right ascension 04h 27m 05.96464s [2]
Declination −46° 56′ 50.9697″ [2]
Apparent magnitude  (V)6.10 [1]
Characteristics
Evolutionary stage main sequence [2]
Spectral type F5.5 V [3]
U−B color index −0.07 [4]
B−V color index +0.48 [4]
Astrometry
Radial velocity (Rv)15±2.4 [5] km/s
Proper motion (μ)RA: +63.853 mas/yr [2]
Dec.: −270.620 mas/yr [2]
Parallax (π)30.6049±0.0259  mas [2]
Distance 106.57 ± 0.09  ly
(32.67 ± 0.03  pc)
Absolute magnitude  (MV)+3.5 [1]
Details
Mass 1.24 [6]   M☉
Radius 1.42±0.06 [7]   R☉
Luminosity 3.26±0.01 [2]   L☉
Surface gravity (log g)4.30 ± 0.14 [8]   cgs
Temperature 6,468±80 [9]   K
Metallicity [Fe/H]−0.25±0.10 [10]   dex
Rotation 14.810 days [11]
Rotational velocity (v sin i)8 [12]  km/s
Age 1.61 [6]   Gyr
Other designations
3 G. Caeli [13] , CD−47°1383, CPD−47°441, FK5 2329, GC 5428, HD 28454, HIP 20781, HR 1418, SAO 216809 [14]
Database references
SIMBAD data

HD 28454, also known as HR 1418, is a solitary, yellowish-white hued star located in the southern constellation Caelum, the chisel. It has an apparent magnitude of 6.1, [1] making it faintly visible to the naked eye under ideal conditions. This star is located relatively close at a distance of about 107 light years based on parallax measurements of Gaia DR3 but is receding with a heliocentric radial velocity of 15  km/s . [5]

HD 28454 is an ordinary F-type main sequence star with a stellar classification of F5.5 V. [3] It has 1.21 times the mass of the Sun [6] and 1.42 times its radius. [7] It radiates 3.26 times the luminosity of the Sun [2] from its photosphere at an effective temperature of 6,468 K. [9] HD 28454 is estimated to be 1.61 billion years, [6] and spins modestly with a projected rotational velocity of 8  km/s . [12] The star is metal deficient, having an iron abundance 56% that of the Sun's. [10]

A candidate extrasolar planet has been detected from Gaia DR3 astrometry. It has a minimum mass of 8 MJ and a minimum semi-major axis of 2.27  astronomical units. [15]

The HD 28454 planetary system [15]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b(unconfirmed)≥8.0 MJ ≥2.27————

References

  1. 1 2 3 4 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters . 38 (5): 331. arXiv: 1108.4971 . Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. XHIP record for this object at VizieR.
  2. 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.
  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. 1 2 Mermilliod, J. -C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data: 0. Bibcode:1986EgUBV........0M.
  5. 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.
  6. 1 2 3 4 Bressan, Alessandro; Marigo, Paola; Girardi, Léo; Salasnich, Bernardo; Dal Cero, Claudia; Rubele, Stefano; Nanni, Ambra (21 November 2012). "parsec : stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code: parsec : tracks and isochrones". Monthly Notices of the Royal Astronomical Society. 427 (1): 127–145. arXiv: 1208.4498 . Bibcode:2012MNRAS.427..127B. doi: 10.1111/j.1365-2966.2012.21948.x . ISSN   1365-2966.
  7. 1 2 Stassun, Keivan G.; et al. (9 September 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv: 1905.10694 . Bibcode:2019AJ....158..138S. doi: 10.3847/1538-3881/ab3467 . eISSN   1538-3881.
  8. ↑ David, Trevor J.; Hillenbrand, Lynne A. (12 May 2015). "The Ages of Early-type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv: 1501.03154 . Bibcode:2015ApJ...804..146D. doi: 10.1088/0004-637X/804/2/146 . eISSN   1538-4357.
  9. 1 2 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.
  10. 1 2 Netopil, Martin (August 2017). "Metallicity calibrations for dwarf stars and giants in the Geneva photometric system". Monthly Notices of the Royal Astronomical Society. 469 (3): 3042–3055. arXiv: 1705.00883 . Bibcode:2017MNRAS.469.3042N. doi: 10.1093/mnras/stx1077 . ISSN   1365-2966.
  11. ↑ Oelkers, Ryan J.; Rodriguez, Joseph E.; Stassun, Keivan G.; Pepper, Joshua; Somers, Garrett; Kafka, Stella; Stevens, Daniel J.; Beatty, Thomas G.; Siverd, Robert J.; Lund, Michael B.; Kuhn, Rudolf B.; James, David; Gaudi, B. Scott (2018). "Variability Properties of Four Million Sources in the TESS Input Catalog Observed with the Kilodegree Extremely Little Telescope Survey". The Astronomical Journal. 155 (1): 39. arXiv: 1711.03608 . Bibcode:2018AJ....155...39O. doi: 10.3847/1538-3881/aa9bf4 .
  12. 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.
  13. ↑ 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.
  14. ↑ "HD 28454". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved October 3, 2022.
  15. 1 2 Kiefer, F.; Lagrange, A.-M.; Rubini, P.; Philipot, F. (October 2025). "Searching for substellar companion candidates with Gaia: II. A catalog of 9698 planet candidate solar-type hosts". Astronomy and Astrophysics. 702: A77. Bibcode:2025A&A...702A..77K. doi: 10.1051/0004-6361/202451745 . ISSN   0004-6361. HD 28454's database entry at VizieR.
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