Astronomy:HD 220035

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Short description: Star in the constellation Aquarius
HD 220035
Observation data
Equinox J2000.0]] (ICRS)
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[2] mas
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

  1. ↑ 1.0 1.1 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V. 
  3. ↑ 3.0 3.1 3.2 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. ↑ 4.0 4.1 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  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. doi:10.1086/130446. Bibcode: 1979PASP...91...83C. 
  6. ↑ "NSV 14515". https://www.aavso.org/vsx/index.php?view=detail.top&oid=53139. 
  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. doi:10.1134/S1063773706110065. Bibcode: 2006AstL...32..759G. 
  8. ↑ 8.0 8.1 8.2 8.3 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. doi:10.1051/0004-6361/202141828. Bibcode: 2022A&A...662A.125F. 
  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. doi:10.1051/0004-6361/202245762. Bibcode: 2024A&A...685A..59M. 
  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. doi:10.1051/0004-6361/201220762. Bibcode: 2014A&A...561A.126D. 




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