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About: Helek     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:TimeUnit115154774, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: yago:WikicatUnitsOfTimeyago:Abstraction100002137yago:Measure100033615organisationyago:TimeUnit115154774 New Facet based on Instances of this Class

The helek, also spelled chelek (Hebrew חלק, meaning "portion", plural halakim חלקים) is a unit of time used in the calculation of the Molad. Other spellings used are chelak and chelek, both with plural chalakim. The hour is divided into 1080 halakim. A helek is 31/3 seconds or 1/18 minute. The helek derives from a small Babylonian time period called a she, meaning '"barleycorn", itself equal to 1/72 of a Babylonian time degree (1° of celestial rotation). 360 degrees × 72 shes per degree / 24 hours = 1080 shes per hour.