Nautical words
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- Zubenelg.
| Zone of Silence. Area in which a sound is inaudible although it may be heard all round the area. The cause of it is not known. Quite frequently noticed in connection with fog signals of lighthouses.
Zone Time. Time kept at sea for official purposes. Sea areas are divided into sectors (termed 'zones') that extend 7° on either side of the prime meridian, and of all meridians of 15° or a multiple of it. Each zone keeps a time that is one hour different from the zone on either side of it. Each zone, therefore, has a time that is an integral number of hours different from Greenwich Mean Time, and the zone is named by this number. Easterly zones prefix a minus sign, westerly zones prefix a plus sign, to the zone number. The zone number, when applied to the zone time, and using its prefixed sign, will give Greenwich Mean Time. Zone+12 and zone -12 meet at the Date Line. Zubenelg. Star Librae. S.H.A. 131°; Dec. S09°; Mag. 2.7. Zubenelgenubi. Star a Librae. S.H.A. 138°; Dec. S16°; Mag. 2.9. Download 2.28 Mb. Share with your friends:
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