6 Orionis
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| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Orion |
| Right ascension | 04h 54m 46.895s |
| Declination | +11° 25′ 33.825″ |
| Apparent magnitude (V) | +5.149 |
| Characteristics | |
| Evolutionary stage | Red supergiant |
| Spectral type | M1–M2 Ia–ab |
| Apparent magnitude (J) | −3.00 |
| Apparent magnitude (K) | −4.05 |
| U−B color index | +2.06 |
| B−V color index | +1.85 |
| Variable type | SRc |
| Astrometry | |
| Radial velocity (Rv) | +21.91 km/s |
| Proper motion (μ) | RA: 26.42±0.25 mas/yr Dec.: 9.60±0.12[1] mas/yr |
| Parallax (π) | 14.128[2] mas |
| Distance | 548+90 −49 ly (168.1+27.5 −14.9[2] pc) |
| Absolute magnitude (MV) | −5.85[3] |
| Details | |
| Mass | 16.5-19[2] M☉ |
| Radius | 764+116 −62[2]–1,021[4] R☉ |
| Luminosity | 126,000+83,000 −50,000[5] (90,000–150,000)[6] L☉ |
| Surface gravity (log g) | −0.5[7] cgs |
| Temperature | 3,600±200[2] K |
| Metallicity [Fe/H] | +0.05[8] dex |
| Rotation | 36±8[9] years |
| Rotational velocity (v sin i) | 5.47±0.25[9] km/s |
| Age | 8.0–8.5[5] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
6 Orionis (also known by its Flamsteed designation g Orionis is a double star in the constellation of Orion.
References[edit]
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedharper2017 - ↑ 2.0 2.1 2.2 2.3 2.4 Cite error: Invalid
<ref>tag; no text was provided for refs namedjoyce2020 - ↑ Lambert, D.L.; Brown, J.A.; Hinkle, K.H.; Johnson, H.R. (September 1984). "Carbon, nitrogen and oxygem abundances in Betelgeuse". Astrophysical Journal. 284: 223–237. Bibcode:1984ApJ...284..223L. doi:10.1086/162401. ISSN 0004-637X.
- ↑ Kravchenko, K.; Jorissen, A.; Van Eck, S.; Merle, T.; Chiavassa, A.; Paladini, C.; Freytag, B.; Plez, B.; Montargès, M.; Van Winckel, H. (2021-04-01). "Atmosphere of Betelgeuse before and during the Great Dimming event revealed by tomography". Astronomy & Astrophysics. 2104: arXiv:2104.08105. arXiv:2104.08105. Bibcode:2021A&A...650L..17K. doi:10.1051/0004-6361/202039801. Unknown parameter
|s2cid=ignored (help) - ↑ 5.0 5.1 Dolan, Michelle M.; Mathews, Grant J.; Lam, Doan Duc; Lan, Nguyen Quynh; Herczeg, Gregory J.; Dearborn, David S.P. (2017). "Evolutionary Tracks for Betelgeuse". The Astrophysical Journal. 819 (1): 7. arXiv:1406.3143v2. Bibcode:2016ApJ...819....7D. doi:10.3847/0004-637X/819/1/7. Unknown parameter
|s2cid=ignored (help) - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedSMITH2009 - ↑ Lobel, Alex; Dupree, Andrea K. (2000). "Modeling the variable chromosphere of α Orionis". The Astrophysical Journal. 545 (1): 454–74. Bibcode:2000ApJ...545..454L. doi:10.1086/317784.
- ↑
Ramírez, Solange V.; Sellgren, K.; Carr, John S.; Balachandran, Suchitra C.; Blum, Robert; Terndrup, Donald M.; Steed, Adam (July 2000). "Stellar Iron Abundances at the Galactic Center". The Astrophysical Journal. 537 (1): 205–20. arXiv:astro-ph/0002062. Bibcode:2000ApJ...537..205R. doi:10.1086/309022. Unknown parameter
|s2cid=ignored (help) - ↑ 9.0 9.1
Kervella, Pierre; Decin, Leen; Richards, Anita M.S.; Harper, Graham M.; McDonald, Iain; O'Gorman, Eamon; Montargès, Miguel; Homan, Ward; Ohnaka, Keiichi (2018). "The close circumstellar environment of Betelgeuse. V. Rotation velocity and molecular envelope properties from ALMA". Astronomy and Astrophysics. 609: A67. arXiv:1711.07983. Bibcode:2018A&A...609A..67K. doi:10.1051/0004-6361/201731761. Unknown parameter
|s2cid=ignored (help)
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