emamajek on 24-Apr-2015 23:13:19 GMT about * alf Tri
Alf Tri (HR 544) is known by the proper name "Mothallah" in the following astronomy references:
(1) Joseph Piazzi (1814) "Praecipuarum Stellarum Inerrantium Positiones Mediae Ineunte Saeculo XIX. Ex Observationibus Habitis In Specula Panormitana Ab anno 1792 ad annum 1813" [also known as the "Palermo catalogue"].
(2) Antonin Becvar (1964) "Atlas of the Heavens - II: Catalogue 1950.0", Praha: Publication House of the Czechoslovak Academy of Sciences and Cambridge, Mass.: Sky Publishing Corporation, 1964, 4th enl. edition, edited by Mohr, Josef M. (scient. ed.).
(3) Dorris Hoffleit & Carlos Jaschek (1991) "The Bright Star Catalogue" (5th edition; Yale University Observatory, New Haven, CT, USA).
(4) Ian Ridpath (2003) "Norton's Star Atlas and Reference Handbook" (20th edition; Dutton).
(5) Paul Kunitzsch & Tim Smart (2006) "A Short Guide to 254 Star Names and Their Derivations" (2nd Revised Edition, Sky Publishing, Cambridge MA, USA).
The origin of the name is discussed by Kunitzsch & Smart (2006) and Allen (1899) [as "Ras al Muthallath" = head of the triangle, Arabic translation of "Caput Trianguli"].
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