HR 2096

Last updated
HR 2096
Observation data
Epoch J2000       Equinox J2000
Constellation Auriga [1]
A
Right ascension 06h 00m 18.8979s [2]
Declination +44° 35′ 31.247″ [2]
Apparent magnitude  (V)6.20 [3]
B
Right ascension 06h 00m 18.8991s [4]
Declination +44° 35′ 31.246″ [4]
Apparent magnitude  (V)11.2 [5]
Characteristics
Spectral type K2III [6]
Astrometry
A
Radial velocity (Rv)+3.02±0.01 [7] km/s
Proper motion (μ)RA: −32.545 [2] mas/yr
Dec.: −38.565 [2] mas/yr
Parallax (π)8.6381±0.0275  mas [2]
Distance 378 ± 1  ly
(115.8 ± 0.4  pc)
B
Radial velocity (Rv)+3.02±0.01 [7] km/s
Proper motion (μ)RA: −33.530 [4] mas/yr
Dec.: −37.595 [4] mas/yr
Parallax (π)8.5217±0.0551  mas [4]
Distance 383 ± 2  ly
(117.3 ± 0.8  pc)
Details
A
Mass 1.39 [8]   M☉
Radius 12.0 [9]   R☉
Luminosity 60 [9]   L☉
Surface gravity (log g)2.60 [9]   cgs
Temperature 4,646 [9]   K
Metallicity [Fe/H]−0.10 [8]   dex
Rotational velocity (v sin i)3.17 [10]  km/s
Age 7.2 [11]   Gyr
B
Mass 0.84 [12]   M☉
Surface gravity (log g)4.55 [12]   cgs
Temperature 5,495 [12]   K
Metallicity [Fe/H]−0.26 [12]   dex
Other designations
BD+44°1332, HD 40325, HIP 28438, SAO 40769 [13]
Database references
SIMBAD data

HR 2096, also known as HD 40325 is a double star about 380 light years away in the constellation Auriga. The primary is a giant star of spectral type K2III, [6] while the secondary is a hotter but less luminous star. It is not a member of any known moving group of stars. [14]

A third star 35″ (as of 2015) from the closer pair is listed in multiple star catalogues as component C, [15] but it is an unrelated background star. [16] It is another giant of spectral type K0III. [17]

References

  1. ↑ 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 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. ↑ Oja, T. (1991). "UBV photometry of stars whose positions are accurately known. VI". Astronomy and Astrophysics Supplement Series. 89: 415. Bibcode:1991A&AS...89..415O.
  4. 1 2 3 4 5 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.
  5. ↑ Turon, C.; et al. (1993). "Version 2 of the HIPPARCOS Input Catalogue". Bulletin d'Information du Centre de Donnees Stellaires. 43: 5. Bibcode:1993BICDS..43....5T.
  6. 1 2 Stephenson, C. B. (1960). "A study of visual binaries having primaries above the main sequence". The Astronomical Journal. 65: 60. Bibcode:1960AJ.....65...60S. doi:10.1086/108191.
  7. 1 2 Jönsson, Henrik; Holtzman, Jon A.; Allende Prieto, Carlos; Cunha, Katia; García-Hernández, D. A.; Hasselquist, Sten; Masseron, Thomas; Osorio, Yeisson; Shetrone, Matthew; Smith, Verne; Stringfellow, Guy S.; Bizyaev, Dmitry; Edvardsson, Bengt; Majewski, Steven R.; Mészáros, Szabolcs; Souto, Diogo; Zamora, Olga; Beaton, Rachael L.; Bovy, Jo; Donor, John; Pinsonneault, Marc H.; Poovelil, Vijith Jacob; Sobeck, Jennifer (2020). "APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South". The Astronomical Journal. 160 (3): 120. arXiv: 2007.05537 . Bibcode:2020AJ....160..120J. doi: 10.3847/1538-3881/aba592 .
  8. 1 2 Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy and Astrophysics. 633: A34. arXiv: 1910.12732 . Bibcode:2020A&A...633A..34C. doi:10.1051/0004-6361/201936360.
  9. 1 2 3 4 Yu, Jie; Khanna, Shourya; Themessl, Nathalie; Hekker, Saskia; Dréau, Guillaume; Gizon, Laurent; Bi, Shaolan (2023). "Revised Extinctions and Radii for 1.5 Million Stars Observed by APOGEE, GALAH, and RAVE". The Astrophysical Journal Supplement Series. 264 (2): 41. arXiv: 2206.00046 . Bibcode:2023ApJS..264...41Y. doi: 10.3847/1538-4365/acabc8 .
  10. ↑ Das, Pradosh Barun; Zucker, Daniel B.; De Silva, Gayandhi M.; Borsato, Nicholas W.; Mura-Guzmán, Aldo; Buder, Sven; Ness, Melissa; Nordlander, Thomas; Casey, Andrew R.; Martell, Sarah L.; Bland-Hawthorn, Joss; De Grijs, Richard; Freeman, Ken C.; Kos, Janez; Stello, Dennis; Lewis, Geraint F.; Hayden, Michael R.; Sharma, Sanjib (2025). "The GALAH Survey: Stellar parameters and abundances for 800 000 Gaia RVS spectra using GALAH DR4 and the Cannon". Monthly Notices of the Royal Astronomical Society. 538 (2): 605. arXiv: 2410.12272 . Bibcode:2025MNRAS.538..605D. doi: 10.1093/mnras/staf169 .
  11. ↑ Kordopatis, G.; Schultheis, M.; McMillan, P. J.; Palicio, P. A.; De Laverny, P.; Recio-Blanco, A.; Creevey, O.; Álvarez, M. A.; Andrae, R.; Poggio, E.; Spitoni, E.; Contursi, G.; Zhao, H.; Oreshina-Slezak, I.; Ordenovic, C.; Bijaoui, A. (2023). "Stellar ages, masses, extinctions, and orbital parameters based on spectroscopic parameters of Gaia DR3". Astronomy and Astrophysics. 669: A104. arXiv: 2206.07937 . Bibcode:2023A&A...669A.104K. doi:10.1051/0004-6361/202244283.
  12. 1 2 3 4 Anders, F.; Khalatyan, A.; Queiroz, A. B. A.; Chiappini, C.; Ardèvol, J.; Casamiquela, L.; Figueras, F.; Jiménez-Arranz, Ó.; Jordi, C.; Monguió, M.; Romero-Gómez, M.; Altamirano, D.; Antoja, T.; Assaad, R.; Cantat-Gaudin, T.; Castro-Ginard, A.; Enke, H.; Girardi, L.; Guiglion, G.; Khan, S.; Luri, X.; Miglio, A.; Minchev, I.; Ramos, P.; Santiago, B. X.; Steinmetz, M. (2022). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia EDR3 stars brighter than G = 18.5". Astronomy and Astrophysics. 658: A91. arXiv: 2111.01860 . Bibcode:2022A&A...658A..91A. doi:10.1051/0004-6361/202142369.
  13. ↑ "HR 2096". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2025-11-27.
  14. ↑ Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C. (2005). "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters". Astronomy and Astrophysics. 430: 165–186. arXiv: astro-ph/0409579 . Bibcode:2005A&A...430..165F. doi:10.1051/0004-6361:20041272. S2CID   17804304.
  15. ↑ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920.
  16. ↑ Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.
  17. ↑ Stephenson, C. B. (1960). "A study of visual binaries having primaries above the main sequence". Astronomical Journal. 65: 60–79. Bibcode:1960AJ.....65...60S. doi:10.1086/108191.


This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.