HD 37289

Last updated
HD 37289
Observation data
Epoch J2000.0        Equinox J2000.0 (ICRS)
Constellation Camelopardalis [1]
Right ascension 05h 42m 26.44853s [2]
Declination +65° 41′ 51.5374″ [2]
Apparent magnitude  (V)5.61±0.01 [3]
Characteristics
Evolutionary stage red giant branch [2]
Spectral type K5 III [4]
B−V color index +1.24 [5]
Astrometry
Radial velocity (Rv)−20.7±0.2 [6] km/s
Proper motion (μ)RA: −0.243 mas/yr [2]
Dec.: −21.572 mas/yr [2]
Parallax (π)10.5949±0.0594  mas [2]
Distance 308 ± 2  ly
(94.4 ± 0.5  pc)
Absolute magnitude  (MV)+1.01 [1]
Details
Mass 3.30±0.04 [2]   M☉
Radius 13.57 [7]   R☉
Luminosity 69.9 [8]   L☉
Surface gravity (log g)2.29 [9]   cgs
Temperature 4,360±90 [10]   K
Metallicity [Fe/H]0.00 [10]   dex
Age 293+27
−28 [2]   Myr
Other designations
AG+65°313, BD+65°485, FK5 2426, GC 7068, HD 37289, HIP 26882, HR 1916, SAO 13570
Database references
SIMBAD data

HD 37289, also known as HR 1916, is a solitary, [11] orange hued star located in the northern circumpolar constellation Camelopardalis. It has an apparent magnitude of 5.61, [3] 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 308 light years distant. [2] It appears to be approaching the Sun, having a heliocentric radial velocity of −20.7  km/s . [6]

HD 37289 has a stellar classification of K5 III, [4] indicating that it is an evolved red giant. Gaia DR3 stellar evolution models place it on the red giant branch. [2] This means that it is currently fusing a hydrogen shell around an inert helium core. At present it has 3.3 times the mass of the Sun and at the age of 293 million years, [2] it has expanded to a radius of 13.6  R☉. [7] It radiates at 70 times the luminosity of the Sun [8] from its enlarged photosphere at an effective temperature of 4,360  K . [10] HD 37289 has been calculated to have a metallicity approximately around solar level. [10]

References

  1. 1 2 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 9 10 11 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 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.
  4. 1 2 Adams, Walter S.; Joy, Alfred H.; Humason, Milton L.; Brayton, Ada Margaret (April 1935). "The Spectroscopic Absolute Magnitudes and Parallaxes of 4179 Stars". The Astrophysical Journal. 81: 187. Bibcode:1935ApJ....81..187A. doi: 10.1086/143628 . eISSN   1538-4357. ISSN   0004-637X.
  5. ↑ Haggkvist, L.; Oja, T. (1970). "Results of BV photometry 1969-70 (Uppsala refractor)". Private Communication. Bibcode:1970Priv.........0H.
  6. 1 2 Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C. (January 2005). "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters". Astronomy and Astrophysics. 430: 165. arXiv: astro-ph/0409579 . Bibcode:2005A&A...430..165F. doi: 10.1051/0004-6361:20041272 . S2CID   17804304.
  7. 1 2 Kervella, Pierre; Arenou, Frédéric; Thévenin, Frédéric (2022). "Stellar and substellar companions from Gaia EDR3". Astronomy & Astrophysics. 657: A7. arXiv: 2109.10912 . Bibcode:2022A&A...657A...7K. doi: 10.1051/0004-6361/202142146 . eISSN   1432-0746. ISSN   0004-6361.
  8. 1 2 Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics . 616. A1. arXiv: 1804.09365 . Bibcode: 2018A&A...616A...1G . doi: 10.1051/0004-6361/201833051 . Gaia DR2 record for this source at VizieR.
  9. ↑ Anders, F.; et al. (August 2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy & Astrophysics. 628: A94. arXiv: 1904.11302 . Bibcode:2019A&A...628A..94A. doi: 10.1051/0004-6361/201935765 . eISSN   1432-0746. ISSN   0004-6361.
  10. 1 2 3 4 Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (January 2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy & Astrophysics. 633: A34. arXiv: 1910.12732 . Bibcode:2020A&A...633A..34C. doi: 10.1051/0004-6361/201936360 . eISSN   1432-0746. ISSN   0004-6361.
  11. ↑ 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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