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Shaula

Shaula
Shaula se ligging (in die rooi sirkel).
Shaula se ligging (in die rooi sirkel).
Sterrebeeld Skerpioen
Bayer-naam Lambda Scorpii
Spektraaltipe B2IV + DA7,9[1]
Soort Veelvoudig
Waarnemingsdata (Epog J2000)
Regte klimming 17h 33m 36.520s[2]
Deklinasie -37° 06′ 13.76″[2]
Skynmagnitude (m) 1,62 / 14,9 / 12[2][3]
Absolute magnitude (M) -3,7[4]
B-V-kleurindeks  -0,24[5]
U-B-kleurindeks  -0,88[5]
Besonderhede
Komponent 1 λ Sco A
Massa (M) 14,5 ± 1,1[6]
Radius (R) 8,8 ± 1,2[6]
Ligsterkte (L) 36 300[6]
Temperatuur (K) 25 000 ± 1 000[6]
Rotasiespoed (km/s) 150[6]
Komponent 2 λ Sco B
Massa (M) 9,6-11,6[6]
Radius (R) 4,7 ± 1[6]
Temperatuur (K) 25 000 ± 1 000[6]
Eienskappe
Afstand (ligjaar) 570
Ouderdom (jaar) 10-13 miljoen
Veranderlikheid Beta Cephei (A)[6]
Ander name
35 Scorpii, HR 6527, CD -37 11673,
HD 158926, SAO 208954, FK5 652,
HIP 85927, CCDM J17336-3706A/B/C
Portaal  Portaalicoon   Sterrekunde

Shaula (ook bekend as Lambda Scorpii of λ Sco) is, ondanks sy Bayer-aanwysing as lambda, die tweede helderste ster in die sterrebeeld Skerpioen (Scorpius) en een van die helderste sterre in die naglug.

  1. Holberg, J. B.; Oswalt, T. D.; Sion, E. M.; Barstow, M. A.; Burleigh, M. R. (2013). "Where are all the Sirius-like binary systems?". Monthly Notices of the Royal Astronomical Society. 435 (3): 2077. arXiv:1307.8047. Bibcode:2013MNRAS.435.2077H. doi:10.1093/mnras/stt1433.
  2. 2,0 2,1 2,2 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
  3. Reed, B. Cameron (2003), "Catalog of Galactic OB Stars", The Astronomical Journal 125 (5): 2531–2533, doi:10.1086/374771, Bibcode2003AJ....125.2531R. 
  4. Balona, L. A.; Feast, M. W. (1975). "The luminosities of the beta Canis Majoris variables, the zero age main sequence and the distance of the Sco-Cen association". Monthly Notices of the Royal Astronomical Society. 172: 191. Bibcode:1975MNRAS.172..191B. doi:10.1093/mnras/172.1.191.
  5. 5,0 5,1 Hamdy, M. A.; Abo Elazm, M. S.; Saad, S. M. (1993). "A catalogue of spectral classification and photometric data of B-type stars". Astrophysics and Space Science. 203: 53. Bibcode:1993Ap&SS.203...53H. doi:10.1007/BF00659414.
  6. 6,0 6,1 6,2 6,3 6,4 6,5 6,6 6,7 6,8 Handler, G.; Schwarzenberg-Czerny, A. (2013). "Time-resolved multicolour photometry of bright B-type variable stars in Scorpius". Astronomy & Astrophysics. 557: A1. arXiv:1307.2733. Bibcode:2013A&A...557A...1H. doi:10.1051/0004-6361/201321886.

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الشولة Arabic Shaula AST Шаўла BE Shaula Catalan Shaula Czech Lambda Scorpii German Lambda Scorpii English Shaula Spanish لاندا کژدم FA Lambda Scorpii Finnish

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