It bore the traditional namesSulafat (Sulaphat), from theArabicالسلحفاةal-sulḥafāt "turtle", andJugum,[12] from theLatiniugum "yoke". The connection with turtles is that fineharps were traditionally made oftortoiseshell. In 2016, theInternational Astronomical Union organized aWorking Group on Star Names (WGSN)[13] to catalogue and standardize proper names for stars. The WGSN approved the nameSulafat for this star on 21 August 2016 and it is now so entered in the IAU Catalog of Star Names.[11]
In 1909, Canadian astronomerSamuel A. Mitchell identified this star as aspectroscopic binary, although he was unable to split theabsorption lines of the components. He found that a period of 25.6 days matched his measurements.[17] It was reported as a spectroscopic binary as recently as 2001,[18] but is now believed to be a single star[19][20] with a high rate of rotation for stars of this type.[18]
^abCowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications",Astronomical Journal,74:375–406,Bibcode:1969AJ.....74..375C,doi:10.1086/110819
^abOja, T. (1986), "UBV photometry of stars whose positions are accurately known. III",Astronomy and Astrophysics Supplement Series,65 (2):405–4,Bibcode:1986A&AS...65..405O
^Evans, D. S. (June 20–24, 1966), "The Revision of the General Catalogue of Radial Velocities", in Batten, Alan Henry; Heard, John Frederick (eds.),Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, vol. 30, University of Toronto: International Astronomical Union, p. 57,Bibcode:1967IAUS...30...57E
^abcdeMaestro, V.; Che, X.; Huber, D.; Ireland, M. J.; Monnier, J. D.; White, T. R.; Kok, Y.; Robertson, J. G.; Schaefer, G. H.; Brummelaar, T. A. T.; Tuthill, P. G. (2013), "Optical interferometry of early-type stars with PAVO@CHARA - I. Fundamental stellar properties",Monthly Notices of the Royal Astronomical Society,434 (2): 1321,arXiv:1306.5937,Bibcode:2013MNRAS.434.1321M,doi:10.1093/mnras/stt1092,S2CID2361434
^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.
^abAdelman, Saul J.; et al. (June 2001), "Elemental abundance analyses with DAO spectrograms. XXV. The superficially normal B and A stars alpha Draconis, tau Herculis, gamma Lyrae, and HR 7926",Astronomy and Astrophysics,371 (3):1078–1083,Bibcode:2001A&A...371.1078A,doi:10.1051/0004-6361:20010408
