43 Sagittarii
  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 19h 17m 38.07940s[1] |
| Declination | −18° 57′ 10.4680″[1] |
| Apparent magnitude (V) | 4.88[2] |
| Characteristics | |
| Spectral type | G8II-III[3] |
| U−B color index | +0.81[4] |
| B−V color index | +1.02[4] |
| Astrometry | |
| Radial velocity (Rv) | +15.20[5] km/s |
| Proper motion (μ) | RA: -9.96[1] mas/yr Dec.: -10.60[1] mas/yr |
| Parallax (π) | 6.77 ± 0.27 mas[1] |
| Distance | 480 ± 20 ly (148 ± 6 pc) |
| Absolute magnitude (MV) | -0.96[2] |
| Details | |
| Mass | 3.30[6] M☉ |
| Radius | 23.99[6] R☉ |
| Luminosity | 277[6] L☉ |
| Surface gravity (log g) | 2.22[6] cgs |
| Temperature | 4,813[6] K |
| Metallicity [Fe/H] | -0.18[6] dex |
| Rotational velocity (v sin i) | 4.2[7] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
43 Sagittarii (43 Sgr) is a class G8II-III[3] (yellow bright giant) star in the constellation Sagittarius. Its apparent magnitude is 4.88[2] and it is approximately 482 light years away based on parallax.[1]
References
- ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
- ^ a b c 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. Vizier catalog entry
- ^ a b 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.
- ^ a b Mermilliod, J. C. (2006). "VizieR Online Data Catalog: Homogeneous Means in the UBV System (Mermilliod 1991)". VizieR On-line Data Catalog: II/168. Originally published in: Institut d'Astronomie. 2168. Bibcode:2006yCat.2168....0M.Vizier catalog entry
- ^ Wilson, R. E. (1953). General Catalogue of Stellar Radial Velocities. Carnegie Institution for Science. Bibcode:1953GCRV..C......0W. LCCN 54001336.
- ^ a b c d e f Reffert, Sabine; Bergmann, Christoph; Quirrenbach, Andreas; Trifonov, Trifon; Künstler, Andreas (2015). "Precise radial velocities of giant stars". Astronomy & Astrophysics. 574: A116. arXiv:1412.4634. Bibcode:2015A&A...574A.116R. doi:10.1051/0004-6361/201322360. Vizier catalog entry
- ^ 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". Astronomy & Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. Vizier catalog entry
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