Rigel

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Rigel, Beta Ori
Orion constellation map.svg

Rigel in the constellation Orion
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Orion
A
Richt ascension 05h 14m 32.27210s[1]
Declination −08° 12′ 05.8981″[1]
Apparent magnitude (V) 0.13[2] (0.05 - 0.18[3])
B
Richt ascension 05h 14m 32.049s[4]
Declination −08° 12′ 14.78″[4]
Apparent magnitude (V) 6.67[5]
Chairactereestics
A
Evolutionar stage Blue supergiant
Spectral type B8 Ia[6]
U−B colour index −0.66[7]
B−V colour index −0.03[7]
Variable teep Alpha Cygni[8]
B
Evolutionar stage Spectroscopic binary
Spectral type B9V + B9V[9]
U−B colour index −0.66[7]
B−V colour index −0.03[7]
Variable teep Alpha Cygni[8]
Astrometry
Radial velocity (Rv)17.8±0.4[10] km/s
Proper motion (μ) RA: +1.31[1] mas/yr
Dec.: +0.50[1] mas/yr
Parallax (π)3.78 ± 0.34[1] mas
Distance860 ± 80 ly
(260 ± 20 pc)
Absolute magnitude (MV)-7.84[11]
Orbit[5]
PrimarBa
CompanionBb
Period (P)9.860 days
Eccentricity (e)0.1
Semi-amplitude (K1)
(primar)
25.0 km/s
Semi-amplitude (K2)
(seicontar)
32.6 km/s
Details
A
Mass23[12] M
Radius78.9±7.4[13] R
Luminosity (bolometric)1.20+0.25
−0.21
×105[13] L
Surface gravity (log g)1.75±0.10[12] cgs
Temperatur12100±150[12] K
Metallicity [Fe/H]−0.06±0.10[6] dex
Rotational velocity (v sin i)25±3[12] km/s
Age8±1[6] Myr
Ba
Mass3.84[9] M
Bb
Mass2.94[9] M
Ither designations
Rigel, Algebar, Elgebar, β Ori, 19 Ori, HD 34085, HR 1713, HIP 24436, SAO 131907[14]
Database references
SIMBADdata

Rigel, an aa kent bi its Bayer designation Beta Orionis (β Ori, β Orionis), is the brichtest starn in the constellation Orion an the seivent brichtest starn in the nicht sky, wi veesual magnitude 0.13.

References[eedit | eedit soorce]

  1. 1.0 1.1 1.2 1.3 1.4 van Leeuwen, F. (November 2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. 
  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: 0. Bibcode:2002yCat.2237....0D. 
  3. Guinan, E. F.; Eaton, J. A.; Wasatonic, R.; Stewart, H.; Engle, S. G.; McCook, G. P. (2010). "Times-Series Photometry & Spectroscopy of the Bright Blue Supergiant Rigel: Probing the Atmosphere and Interior of a SN II Progenitor". Proceedings of the International Astronomical Union. 5: 359. Bibcode:2010HiA....15..359G. doi:10.1017/S1743921310009798. 
  4. 4.0 4.1 DENIS Consortium (2005). "VizieR Online Data Catalog: The DENIS database (DENIS Consortium, 2005)". VizieR On-line Data Catalog: B/denis. Originally published in: 2005yCat.2263....0T. 1. Bibcode:2005yCat....102002D. 
  5. 5.0 5.1 Sanford, Roscoe F. (1942). "The Spectrographic Orbit of the Companion to Rigel". Astrophysical Journal. 95: 421. Bibcode:1942ApJ....95..421S. doi:10.1086/144412. 
  6. 6.0 6.1 6.2 Przybilla, N.; et al. (January 2006). "Quantitative spectroscopy of BA-type supergiants". Astronomy and Astrophysics. 445 (3): 1099–1126. arXiv:astro-ph/0509669Freely accessible. Bibcode:2006A&A...445.1099P. doi:10.1051/0004-6361:20053832. 
  7. 7.0 7.1 7.2 7.3 Nicolet, B. (1978). "Photoelectric photometric Catalogue of homogeneous measurements in the UBV System". Astronomy and Astrophysics Supplement Series. 34: 1–49. Bibcode:1978A&AS...34....1N. 
  8. 8.0 8.1 Moravveji, Ehsan; Moya, Andres; Guinan, Edward F. (April 2012). "Asteroseismology of the nearby SN-II Progenitor: Rigel. Part II. ε-mechanism Triggering Gravity-mode Pulsations?". The Astrophysical Journal. 749 (1): 74–84. arXiv:1202.1836Freely accessible. Bibcode:2012ApJ...749...74M. doi:10.1088/0004-637X/749/1/74. 
  9. 9.0 9.1 9.2 Tokovinin, A. A. (1997). "MSC - a catalogue of physical multiple stars". Astronomy & Astrophysics Supplement Series. 124: 75. Bibcode:1997A&AS..124...75T. doi:10.1051/aas:1997181. 
  10. 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. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. 
  11. Shultz, M.; Wade, G. A.; Petit, V.; Grunhut, J.; Neiner, C.; Hanes, D.; MiMeS Collaboration (2014). "An observational evaluation of magnetic confinement in the winds of BA supergiants". Monthly Notices of the Royal Astronomical Society. 438 (2): 1114. arXiv:1311.5116Freely accessible. Bibcode:2014MNRAS.438.1114S. doi:10.1093/mnras/stt2260. 
  12. 12.0 12.1 12.2 12.3 Przybilla, N. (2010). "Mixing of CNO-cycled matter in massive stars". Astronomy and Astrophysics. 517: A38. arXiv:1005.2278Freely accessible. Bibcode:2010A&A...517A..38P. doi:10.1051/0004-6361/201014164. 
  13. 13.0 13.1 Moravveji, Ehsan; Guinan, Edward F.; Shultz, Matt; Williamson, Michael H.; Moya, Andres (March 2012). "Asteroseismology of the nearby SN-II Progenitor: Rigel. Part I. The MOST High-precision Photometry and Radial Velocity Monitoring". The Astrophysical Journal. 747 (1): 108–115. arXiv:1201.0843Freely accessible. Bibcode:2012ApJ...747..108M. doi:10.1088/0004-637X/747/2/108. 
  14. "SIMBAD Astronomical Database". Results for Rigel. Retrieved 2008-04-10. 

Coordinates: Sky map 05h 14m 32.272s, −08° 12′ 05.91″