λ Scorpii (Latinised to Lambda Scorpii) is the star system's Bayer designation.
It bore the traditional name Shaula, which comes from the Arabic الشولاء al-šawlā´ meaning 'the raised [tail]', as it is found in the tail of Scorpius, the scorpion. In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN)[12] to catalog and standardize proper names for stars. The WGSN's first bulletin of July 2016[13] included a table of the first two batches of names approved by the WGSN, which included Shaula for the star λ Scorpii Aa.
In Indian Astronomy it is called MulA Nakshathram. Mūla ("root") (Devanagari मूल/मूळ) (Tamil: மூலம்) is the 19th nakshatra or "lunar mansion" in Vedic astrology. The symbol of Mula is a bunch of roots tied together (reticulated roots) or an 'elephant goad' (ankusha).[citation needed]
The indigenous Boorong people of northwestern Victoria (Australia) named it (together with Upsilon Scorpii) Karik Karik,[18] "the Falcons".[19]
Properties
A light curve for Lambda Scorpii, plotted from TESS data.[20] The large dips in brightness are eclipses, and the rapid oscillations show the Beta Cephei variability.
Lambda Scorpii is located some 570 light-years away from the Sun.
Spectroscopic and interferometric observations have shown that it is actually a triple star system consisting of two B-type stars and a pre-main-sequence star.[8] The primary star is a Beta Cephei variable star with rapid brightness changes of about a hundredth of a magnitude.[6][5] The pre-main-sequence star has an orbital period of 6 days and the B companion has a period of 1053 days. The three stars lie in the same orbital plane, strongly suggesting that they were formed at the same time. The masses of the primary, pre-main-sequence star and the B companion are 14.5, 2.0 and 10.6 solar masses, respectively. The age of the system is estimated to be in the range 10–13 million years.
A 15th-magnitude star has a separation of 42 arcseconds, whereas a 12th-magnitude star is 95 arcseconds away. It is not known whether or not these components are physically associated with Lambda Scorpii. If they both were, the first would have a projected linear separation of approximately 7,500 astronomical units (AU) and the second approximately 17,000 AU (0.27 light-years) away. Gaia Data Release 3 reports that the fainter of these two stars is a little larger and brighter than the sun and about 420 light years away,[21] while the brighter star is a luminous background object.[22]
^Kunitzsch, Paul; Smart, Tim (2006). A Dictionary of Modern star Names: A Short Guide to 254 Star Names and Their Derivations (2nd rev. ed.). Cambridge, Massachusetts: Sky Pub. ISBN978-1-931559-44-7.
^"IAU Catalog of Star Names". Retrieved 28 July 2016.
^ abcdefVan 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. S2CID 18759600.
^Reed, B. Cameron (2003), "Catalog of Galactic OB Stars", The Astronomical Journal, 125 (5): 2531–2533, Bibcode:2003AJ....125.2531R, doi:10.1086/374771.
^ abcdeTango, W. J.; Davis, J.; Ireland, M. J.; Aerts, C.; Uytterhoeven, K.; Jacob, A. P.; Mendez, A.; North, J. R.; Seneta, E. B.; Tuthill, P. G. (2006). "Orbital elements, masses and distance of λ Scorpii a and B determined with the Sydney University Stellar Interferometer and high-resolution spectroscopy". Monthly Notices of the Royal Astronomical Society. 370 (2): 884–890. arXiv:astro-ph/0605311. Bibcode:2006MNRAS.370..884T. doi:10.1111/j.1365-2966.2006.10526.x. S2CID 13971499.
^ abcdUytterhoeven, K.; Willems, B.; Lefever, K.; Aerts, C.; Telting, J. H.; Kolb, U. (2004). "Interpretation of the variability of the β Cephei star λ Scorpii". Astronomy and Astrophysics. 427 (2): 581–592. Bibcode:2004A&A...427..581U. doi:10.1051/0004-6361:20041223.
^ abHamdy, 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 (1): 53–107. Bibcode:1993Ap&SS.203...53H. doi:10.1007/BF00659414. S2CID 122459090.
^ abcdefghiHandler, 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. S2CID 56403146.
^Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
^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: 191–203. Bibcode:1975MNRAS.172..191B. doi:10.1093/mnras/172.1.191.
^"IAU Working Group on Star Names (WGSN)". Retrieved 22 May 2016.
^"Bulletin of the IAU Working Group on Star Names, No. 1" (PDF). Retrieved 28 July 2016.
^(in Chinese)中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, ISBN978-986-7332-25-7.
^(in Chinese) 香港太空館 - 研究資源 - 亮星中英對照表 2008-10-25 at the Wayback Machine, Hong Kong Space Museum. Accessed on line November 23, 2010.
^Rogers, J. H. (February 1998). "Origins of the ancient constellations: I. The Mesopotamian traditions". Journal of the British Astronomical Association. 108 (1): 9–28. Bibcode:1998JBAA..108....9R.
^Robert Burnham (1978). Burnham's Celestial Handbook: An Observer's Guide to the Universe Beyond the Solar System. New York: Courier Corporation. p. 1678. ISBN978-0-486-23673-5.
^Hamacher, Duane W.; Frew, David J. (2010). "An Aboriginal Australian Record of the Great Eruption of Eta Carinae". Journal of Astronomical History and Heritage. 13 (3): 220–34. arXiv:1010.4610. Bibcode:2010JAHH...13..220H. doi:10.3724/SP.J.1440-2807.2010.03.06. S2CID 118454721.
^Stanbridge, William Edward (1857). "On the astronomy and mythology of the Aborigines of Victoria". Proceedings of the Philosophical Institute of Victoria. 2: 137. Bibcode:1857PPIVT...2..137S.
^"MAST: Barbara A. Mikulski Archive for Space Telescopes". Space Telescope Science Institute. Retrieved 8 December 2021.
^Vallenari, A.; et al. (Gaia Collaboration) (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. arXiv:2208.00211. doi:10.1051/0004-6361/202243940. Gaia DR3 record for this source at VizieR.
^Vallenari, A.; et al. (Gaia Collaboration) (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. arXiv:2208.00211. doi:10.1051/0004-6361/202243940. Gaia DR3 record for this source at VizieR.
May 12, 2023
lambda, scorpii, triple, star, system, second, brightest, object, constellation, scorpius, formally, named, shaula, bayer, designation, which, latinised, from, scorpii, abbreviated, lambda, with, apparent, visual, magnitude, brightest, stars, night, scorpiiloc. Lambda Scorpii is a triple star system and the second brightest object in the constellation of Scorpius It is formally named Shaula Lambda Scorpii is its Bayer designation which is Latinised from l Scorpii and abbreviated Lambda Sco or l Sco With an apparent visual magnitude of 1 62 it is one of the brightest stars in the night sky l ScorpiiLocation of l Scorpii circled Observation dataEpoch J2000 Equinox J2000Constellation ScorpiusPronunciation ˈ ʃ ɔː l e 1 2 Right ascension 17h 33m 36 520s 3 Declination 37 06 13 76 3 Apparent magnitude V 1 62 14 9 12 0 3 4 CharacteristicsSpectral type B1 5IV B2IV 5 6 U B color index 0 880 7 B V color index 0 240 7 Variable type Beta Cephei A 8 AstrometryRadial velocity Rv 3 00 9 km sProper motion m RA 8 90 3 mas yr 3 Dec 29 95 mas yr 3 Parallax p 5 71 0 90 mas 3 Distanceapprox 570 ly approx 180 pc Absolute magnitude MV 3 70 10 Orbit 11 PrimaryACompanionBPeriod P 2 8825 yrSemi major axis a 49 3 masEccentricity e 0 121Inclination i 77 2 Orbit 11 PrimaryAaCompanionAbPeriod P 5 9520 dEccentricity e 0 26Semi amplitude K1 primary 39 3 km sDetailsl Sco AaMass10 4 5 M Radius8 8 1 2 8 R Luminosity36 300 8 L Surface gravity log g 3 8 6 cgsTemperature25 000 1 000 8 KRotation3 4 0 5 d 8 Rotational velocity v sin i 150 8 km sl Sco BMass8 1 5 M Radius4 7 1 0 8 R Surface gravity log g 4 0 6 cgsTemperature25 000 1 000 8 Kl Sco AbMass1 8 5 M Other designationsShaula 35 Scorpii 35 Sco CD 37 11673 FK5 652 HD 158926 HIP 85927 HR 6527 SAO 208954 CCDM J17336 3706A B CDatabase referencesSIMBADdata Contents 1 Nomenclature 2 Properties 3 In culture 4 ReferencesNomenclature Editl Scorpii Latinised to Lambda Scorpii is the star system s Bayer designation It bore the traditional name Shaula which comes from the Arabic الشولاء al sawla meaning the raised tail as it is found in the tail of Scorpius the scorpion In 2016 the International Astronomical Union organized a Working Group on Star Names WGSN 12 to catalog and standardize proper names for stars The WGSN s first bulletin of July 2016 13 included a table of the first two batches of names approved by the WGSN which included Shaula for the star l Scorpii Aa In Indian Astronomy it is called MulA Nakshathram Mula root Devanagari म ल म ळ Tamil ம லம is the 19th nakshatra or lunar mansion in Vedic astrology The symbol of Mula is a bunch of roots tied together reticulated roots or an elephant goad ankusha citation needed In Chinese 尾宿 Wei Xiu meaning Tail refers to an asterism consisting of l Scorpii e Scorpii z1 Scorpii z2 Scorpii h Scorpii 8 Scorpii i1 Scorpii i2 Scorpii k Scorpii m1 Scorpii and y Scorpii 14 Consequently the Chinese name for l Scorpii itself is 尾宿八 Wei Xiu ba the Eighth Star of Tail 15 Together with y Scorpii Lesath Shaula is listed in the Babylonian compendium MUL APIN as dSharur4 u dShargaz meaning Sharur and Shargaz 16 In Coptic they were called Minamref 17 The indigenous Boorong people of northwestern Victoria Australia named it together with Upsilon Scorpii Karik Karik 18 the Falcons 19 Properties Edit A light curve for Lambda Scorpii plotted from TESS data 20 The large dips in brightness are eclipses and the rapid oscillations show the Beta Cephei variability Lambda Scorpii is located some 570 light years away from the Sun Spectroscopic and interferometric observations have shown that it is actually a triple star system consisting of two B type stars and a pre main sequence star 8 The primary star is a Beta Cephei variable star with rapid brightness changes of about a hundredth of a magnitude 6 5 The pre main sequence star has an orbital period of 6 days and the B companion has a period of 1053 days The three stars lie in the same orbital plane strongly suggesting that they were formed at the same time The masses of the primary pre main sequence star and the B companion are 14 5 2 0 and 10 6 solar masses respectively The age of the system is estimated to be in the range 10 13 million years A 15th magnitude star has a separation of 42 arcseconds whereas a 12th magnitude star is 95 arcseconds away It is not known whether or not these components are physically associated with Lambda Scorpii If they both were the first would have a projected linear separation of approximately 7 500 astronomical units AU and the second approximately 17 000 AU 0 27 light years away Gaia Data Release 3 reports that the fainter of these two stars is a little larger and brighter than the sun and about 420 light years away 21 while the brighter star is a luminous background object 22 In culture EditShaula appears on the flag of Brazil symbolizing the state of Rio Grande do Norte USS Shaula AK 118 was a U S Navy Crater class cargo ship named after the star References Edit Kunitzsch Paul Smart Tim 2006 A Dictionary of Modern star Names A Short Guide to 254 Star Names and Their Derivations 2nd rev ed Cambridge Massachusetts Sky Pub ISBN 978 1 931559 44 7 IAU Catalog of Star Names Retrieved 28 July 2016 a b c d e f Van Leeuwen F 2007 Validation of the new Hipparcos reduction Astronomy and Astrophysics 474 2 653 664 arXiv 0708 1752 Bibcode 2007A amp A 474 653V doi 10 1051 0004 6361 20078357 S2CID 18759600 Reed B Cameron 2003 Catalog of Galactic OB Stars The Astronomical Journal 125 5 2531 2533 Bibcode 2003AJ 125 2531R doi 10 1086 374771 a b c d e Tango W J Davis J Ireland M J Aerts C Uytterhoeven K Jacob A P Mendez A North J R Seneta E B Tuthill P G 2006 Orbital elements masses and distance of l Scorpii a and B determined with the Sydney University Stellar Interferometer and high resolution spectroscopy Monthly Notices of the Royal Astronomical Society 370 2 884 890 arXiv astro ph 0605311 Bibcode 2006MNRAS 370 884T doi 10 1111 j 1365 2966 2006 10526 x S2CID 13971499 a b c d Uytterhoeven K Willems B Lefever K Aerts C Telting J H Kolb U 2004 Interpretation of the variability of the b Cephei star l Scorpii Astronomy and Astrophysics 427 2 581 592 Bibcode 2004A amp A 427 581U doi 10 1051 0004 6361 20041223 a b 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 1 53 107 Bibcode 1993Ap amp SS 203 53H doi 10 1007 BF00659414 S2CID 122459090 a b c d e f g h i Handler G Schwarzenberg Czerny A 2013 Time resolved multicolour photometry of bright B type variable stars in Scorpius Astronomy amp Astrophysics 557 A1 arXiv 1307 2733 Bibcode 2013A amp A 557A 1H doi 10 1051 0004 6361 201321886 S2CID 56403146 Gontcharov G A 2006 Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system Astronomy Letters 32 11 759 771 arXiv 1606 08053 Bibcode 2006AstL 32 759G doi 10 1134 S1063773706110065 S2CID 119231169 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 172 191 203 Bibcode 1975MNRAS 172 191B doi 10 1093 mnras 172 1 191 a b Tokovinin Andrei 2018 03 01 The Updated Multiple Star Catalog The Astrophysical Journal Supplement Series 235 1 6 arXiv 1712 04750 Bibcode 2018ApJS 235 6T doi 10 3847 1538 4365 aaa1a5 ISSN 0067 0049 S2CID 119047709 IAU Working Group on Star Names WGSN Retrieved 22 May 2016 Bulletin of the IAU Working Group on Star Names No 1 PDF Retrieved 28 July 2016 in Chinese 中國星座神話 written by 陳久金 Published by 台灣書房出版有限公司 2005 ISBN 978 986 7332 25 7 in Chinese 香港太空館 研究資源 亮星中英對照表 Archived 2008 10 25 at the Wayback Machine Hong Kong Space Museum Accessed on line November 23 2010 Rogers J H February 1998 Origins of the ancient constellations I The Mesopotamian traditions Journal of the British Astronomical Association 108 1 9 28 Bibcode 1998JBAA 108 9R Robert Burnham 1978 Burnham s Celestial Handbook An Observer s Guide to the Universe Beyond the Solar System New York Courier Corporation p 1678 ISBN 978 0 486 23673 5 Hamacher Duane W Frew David J 2010 An Aboriginal Australian Record of the Great Eruption of Eta Carinae Journal of Astronomical History and Heritage 13 3 220 34 arXiv 1010 4610 Bibcode 2010JAHH 13 220H doi 10 3724 SP J 1440 2807 2010 03 06 S2CID 118454721 Stanbridge William Edward 1857 On the astronomy and mythology of the Aborigines of Victoria Proceedings of the Philosophical Institute of Victoria 2 137 Bibcode 1857PPIVT 2 137S MAST Barbara A Mikulski Archive for Space Telescopes Space Telescope Science Institute Retrieved 8 December 2021 Vallenari A et al Gaia Collaboration 2022 Gaia Data Release 3 Summary of the content and survey properties Astronomy amp Astrophysics arXiv 2208 00211 doi 10 1051 0004 6361 202243940 Gaia DR3 record for this source at VizieR Vallenari A et al Gaia Collaboration 2022 Gaia Data Release 3 Summary of the content and survey properties Astronomy amp Astrophysics arXiv 2208 00211 doi 10 1051 0004 6361 202243940 Gaia DR3 record for this source at VizieR Retrieved from https en wikipedia org w index php title Lambda Scorpii amp oldid 1149966544, wikipedia, wiki, book, 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