29 Orionis
 
| |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Orion |
| Right ascension | 05h 23m 56.82768s[1] |
| Declination | −7° 48′ 29.0332″[1] |
| Apparent magnitude (V) | 4.13[2] |
| Characteristics | |
| Spectral type | G8IIIFe-0.5[3] |
| U−B color index | +0.70[4] |
| B−V color index | +0.96[4] |
| Astrometry | |
| Radial velocity (Rv) | -17.68[5] km/s |
| Proper motion (μ) | RA: -14.82[1] mas/yr Dec.: -45.02[1] mas/yr |
| Parallax (π) | 20.73 ± 0.17[1] mas |
| Distance | 157 ± 1 ly (48.2 ± 0.4 pc) |
| Absolute magnitude (MV) | 0.73[6] |
| Details | |
| Mass | 2.33[2] M☉ |
| Radius | 10.36[5] R☉ |
| Luminosity | 71[2] L☉ |
| Surface gravity (log g) | 2.44[2] cgs |
| Temperature | 4,852[2] K |
| Metallicity [Fe/H] | -0.25[2] dex |
| Rotational velocity (v sin i) | 1.1[7] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
29 Orionis (29 Ori) is a star in the constellation Orion. A yellow giant of spectral type G8III,[3] it has an apparent magnitude of 4.13[2] and is located around 157 light-years distant from Earth.[1] It has a surface temperature of 4852 K and is 2.33 times as massive as the Sun.[2]
In Bayer's Uranometria, this star is one of two stars (the other, Upsilon Orionis) marking the top of Orion's right boot.[8]
References
- 1 2 3 4 5 6 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 - 1 2 3 4 5 6 7 8 Takeda, Yoichi; Sato, Bun'ei; Murata, Daisuke (2008). "Stellar Parameters and Elemental Abundances of Late-G Giants". Publications of the Astronomical Society of Japan. 60 (4): 781–802. arXiv:0805.2434. Bibcode:2008PASJ...60..781T. doi:10.1093/pasj/60.4.781.
- 1 2 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.
- 1 2 Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
- 1 2 Jofré, E.; Petrucci, R.; Saffe, C.; Saker, L.; Artur de la Villarmois, E.; Chavero, C.; Gómez, M.; Mauas, P. J. D. (2015). "Stellar parameters and chemical abundances of 223 evolved stars with and without planets". Astronomy & Astrophysics. 574: A50. arXiv:1410.6422. Bibcode:2015A&A...574A..50J. doi:10.1051/0004-6361/201424474. Vizier catalog entry
- ↑ Da Silva, Ronaldo; Milone, André de C.; Rocha-Pinto, Helio J. (2015). "Homogeneous abundance analysis of FGK dwarf, subgiant, and giant stars with and without giant planets". Astronomy & Astrophysics. 580: A24. Bibcode:2015A&A...580A..24D. doi:10.1051/0004-6361/201525770. 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
- ↑ Wagman, Morton (2003). Lost Stars: Lost, Missing and Troublesome Stars from the Catalogues of Johannes Bayer, Nicholas Louis de Lacaille, John Flamsteed, and Sundry Others. Blacksburg, VA: The McDonald & Woodward Publishing Company. p. 513. ISBN 978-0-939923-78-6.
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