Astronomy:HD 128198
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Short description: Star in the constellation Boötes
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Boötes[1] |
| Right ascension | 14h 34m 38.4998s[2] |
| Declination | +36° 37′ 33.829″[2] |
| Apparent magnitude (V) | 6.1657[3] |
| Characteristics | |
| Evolutionary stage | red giant branch[4][2] |
| Spectral type | K4III[5] |
| U−B color index | +1.59[6] |
| B−V color index | +1.38[6] |
| Astrometry | |
| Radial velocity (Rv) | −9.88±0.20[3] km/s |
| Proper motion (μ) | RA: −24.973[2] mas/yr Dec.: −46.654[2] mas/yr |
| Parallax (π) | 5.9435 ± 0.0293[2] mas |
| Distance | 549 ± 3 ly (168.3 ± 0.8 pc) |
| Absolute magnitude (MV) | +0.07[1] |
| Details | |
| Mass | 2.6[2] M☉ |
| Radius | 24[2] R☉ |
| Luminosity | 214[2] L☉ |
| Surface gravity (log g) | 2.01[2] cgs |
| Temperature | 4,420[2] K |
| Metallicity [Fe/H] | −0.11±0.09 [7] dex |
| Age | 558[2] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 128198 is a giant star in the northern constellation of Boötes, about 549 light years away.
References
- ↑ 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.
- ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 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.
- ↑ 3.0 3.1 Famaey, B. et al. (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, doi:10.1051/0004-6361:20041272, Bibcode: 2005A&A...430..165F.
- ↑ Gontcharov, G. A. (2011). "The red giant branch in the Tycho-2 catalogue". Astronomy Letters 37 (10): 707. doi:10.1134/S1063773711090040. Bibcode: 2011AstL...37..707G.
- ↑ Sato, K.; Kuji, S. (November 1990), "MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington", Astronomy and Astrophysics Supplement Series 85 (3): 1069–1087, Bibcode: 1990A&AS...85.1069S.
- ↑ 6.0 6.1 Guetter, H. H.; Hewitt, A. V. (June 1984), "Photoelectric UBV photometry for 317 PZT and VZT stars", Publications of the Astronomical Society of the Pacific 96: 441–443, doi:10.1086/131362, Bibcode: 1984PASP...96..441G.
- ↑ Taylor, B.J. (February 1999), "Catalogs of temperatures and [Fe/H averages for evolved G and K stars"], Astronomy and Astrophysics Supplement 134 (3): 523–524, doi:10.1051/aas:1999153, Bibcode: 1999A&AS..134..523T, https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1642&context=facpub.
- ↑ "HD 128198". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+128198.
External links
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