heliacal cycle
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Sothic cycle — The Sothic cycle or Canicular period is a period of 1461 ancient Egyptian years (of 365 days each) or 1460 Julian years (averaging 365.25 days each). During a Sothic cycle, the 365 day year loses enough time that the start of the year once again… … Wikipedia
sothic cycle — noun Usage: usually capitalized S : a period of 1460 Sothic years in the ancient Egyptian calendar being the time required for the beginning of the vague year of 365 days to return to its original place in relation to the sun after retrogressing… … Useful english dictionary
calendar — calendrical /keuh len dri keuhl/, calendric, calendarial /kal euhn dair ee euhl/, calendarian, calendaric, adj. /kal euhn deuhr/, n. 1. a table or register with the days of each month and week in a year: He marked the date on his calendar. 2. any … Universalium
Year — A year (from Old English gēar) is the orbital period of the Earth moving around the Sun. For an observer on Earth, this corresponds to the period it takes the Sun to complete one course throughout the zodiac along the ecliptic. In astronomy, the… … Wikipedia
chronology — /kreuh nol euh jee/, n., pl. chronologies. 1. the sequential order in which past events occur. 2. a statement of this order. 3. the science of arranging time in periods and ascertaining the dates and historical order of past events. 4. a… … Universalium
Egypt — • Provides information on history, religion, and literature Catholic Encyclopedia. Kevin Knight. 2006. Egypt Egypt † … Catholic encyclopedia
Egyptian calendar — The ancient civil Egyptian calendar had a year that was 360 days long and was divided into 12 months of 30 days each, plus five extra days (epagomenae, from Greek ἐπαγόμεναι) at the end of the year. The months were divided into three weeks of ten … Wikipedia
Hindu chronology — The subject of Hindu chronology divides naturally into three parts: the calendar, the eras, and other reckonings. The Calendar The Hindus have had, from very ancient times, the system of lunisolar cycles, made by the combination of solar years,… … Wikipedia
Maya calendar — Maya civiliza … Wikipedia
Astrological age — For the song, see Aquarius/Let the Sunshine In. For the album, see The Age of Aquarius (album). An astrological age is a time period in astrology which is believed by some to parallel major changes in the Earth s inhabitants development,… … Wikipedia
