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HD 218061

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HD 218061
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius[1]
Right ascension 23h 5m 12.854s[2]
Declination −17° 4′ 45.28″[2]
Apparent magnitude (V) 6.14[3]
Characteristics
Evolutionary stage red giant branch[2]
Spectral type K4III[4]
Astrometry
Radial velocity (Rv)14.67±0.17[5] km/s
Proper motion (μ) RA: −40.851[2] mas/yr
Dec.: −37.904[2] mas/yr
Parallax (π)5.2458±0.0418 mas[2]
Distance622 ± 5 ly
(191 ± 2 pc)
Absolute magnitude (MV)−0.31[1]
Details
Mass1.8[2] M☉
Radius25[6] R☉
Luminosity196[6] L☉
Surface gravity (log g)1.50[7] cgs
Temperature4,291[6] K
Metallicity [Fe/H]−0.20[7] dex
Age1.6[2] Gyr
Other designations
BD−17°6661, HD 218061, HIP 113998, HR 8783, SAO 165481[8]
Database references
SIMBADdata

HD 218061 is a class K4III (orange giant) star in the constellation Aquarius. Its apparent magnitude is 6.14 and it is approximately 622 light years away based on parallax.

It has a companion B of apparent magnitude 11.4 and separation 55.1".[9]

References

[edit]
  1. ^ a b 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.
  2. ^ a b c d e f g h 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. ^ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355. Bibcode:2000A&A...355L..27H.
  4. ^ Houk, N.; Smith-Moore, M. (1988). "Michigan Catalogue of Two-dimensional Spectral Types for the HD Stars. Volume 4, Declinations -26°.0 to -12°.0". Michigan Catalogue of Two-Dimensional Spectral Types for the Hd Stars. Volume 4. 4. Bibcode:1988mcts.book.....H.
  5. ^ 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.
  6. ^ a b c Fetherolf, Tara; Pepper, Joshua; Simpson, Emilie; Kane, Stephen R.; Močnik, Teo; English, John Edward; Antoci, Victoria; Huber, Daniel; Jenkins, Jon M.; Stassun, Keivan; Twicken, Joseph D.; Vanderspek, Roland; Winn, Joshua N. (2023). "Variability Catalog of Stars Observed during the TESS Prime Mission". The Astrophysical Journal Supplement Series. 268 (1): 4. arXiv:2208.11721. Bibcode:2023ApJS..268....4F. doi:10.3847/1538-4365/acdee5.
  7. ^ a b Matsuno, Tadafumi; Starkenburg, Else; Balbinot, Eduardo; Helmi, Amina (2024). "Improving metallicity estimates for very metal-poor stars in the Gaia DR3 GSP-Spec catalog". Astronomy and Astrophysics. 685: A59. arXiv:2212.11639. Bibcode:2024A&A...685A..59M. doi:10.1051/0004-6361/202245762.
  8. ^ "HD 218061". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2025-04-29.
  9. ^ Catalog of Components of Double and Multiple Stars, CCDM J23052-1705B (accessed 20 September 2015)
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