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HD 220035

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HD 220035
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius[1]
Right ascension 23h 20m 40.88873s[2]
Declination −05° 54′ 28.6987″[2]
Apparent magnitude (V) 6.17[3]
Characteristics
Evolutionary stage red giant branch[4]
Spectral type K0III[5]
U−B color index +0.97[3]
B−V color index +1.07[3]
Variable type suspected[6]
Astrometry
Radial velocity (Rv)-1.9[7] km/s
Proper motion (μ) RA: -100.38[2] mas/yr
Dec.: -58.84[2] mas/yr
Parallax (π)8.84±0.52 mas[2]
Distance370 ± 20 ly
(113 ± 7 pc)
Absolute magnitude (MV)+0.91[1]
Details
Mass1.2[8] M☉
Radius13[4] R☉
Luminosity62[8] L☉
Temperature4,590[8] K
Metallicity [Fe/H]−0.35[9] dex
Rotational velocity (v sin i)<1.6[10] km/s
Age6.8[8] Gyr
Other designations
BD−06°6191, HD 220035, HIP 115257, HR 8879, SAO 146652
Database references
SIMBADdata

HD 220035 is suspected variable star in the equatorial constellation of Aquarius.

References

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  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 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.
  3. ^ a b c Johnson, H. L.; et al. (1966). "UBVRIJKL photometry of the bright stars". Communications of the Lunar and Planetary Laboratory. 4 (99): 99. Bibcode:1966CoLPL...4...99J.
  4. ^ a b 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. ^ Cowley, A. P.; Bidelman, W. P. (February 1979). "MK spectral types for some F and G stars". Publications of the Astronomical Society of the Pacific. 91: 83–86. Bibcode:1979PASP...91...83C. doi:10.1086/130446.
  6. ^ "NSV 14515". International Variable Star Index. Retrieved 2025-04-29.
  7. ^ 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. S2CID 119231169.
  8. ^ a b c d Fouesneau, M.; Andrae, R.; Dharmawardena, T.; Rybizki, J.; Bailer-Jones, C. A. L.; Demleitner, M. (2022). "Astrophysical parameters from Gaia DR2, 2MASS, and AllWISE". Astronomy and Astrophysics. 662: A125. arXiv:2201.03252. Bibcode:2022A&A...662A.125F. doi:10.1051/0004-6361/202141828.
  9. ^ 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.
  10. ^ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014). "A catalog of rotational and radial velocities for evolved stars. V. Southern stars". Astronomy and Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762.
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