Definitions for octaeteris
oc·tae·teris

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1. octaeterisnoun

   A period of eight years in the Ancient Greek calendar.

2. Etymology: ὀκταετηρίς

WikipediaRate this definition:0.0 / 0 votes

1. Octaeteris

   In astronomy, an octaeteris (Greek: ὀκταετηρίς, plural: octaeterides) is the period of eight solar years after which the moon phase occurs on the same day of the year plus one or two days. This period is also in a very good synchronicity with five Venusian visibility cycles (the Venusian synodic period) and thirteen Venusian revolutions around the sun (Venusian sidereal period). This means, that if Venus is visible beside the moon, after eight years the two will be again close together near the same date of the calendar. The octaeteris, also known as oktaeteris, was noted by Cleostratus in ancient Greece as a 2 923+ 1 /2 day cycle. The octaeteris is the calendar used for the Olympic games; if one Olympiad was 50 months long, the next would be 49 lunar months long. This octaeteris calendar is used for the Olympic dial of the Antikythera mechanism, to determine the time of the Olympic games and other Greek festivities. The 8 year short lunisolar cycle was probably known to many ancient cultures. The mathematical proportions of the octaeteris cycles were noted in Classic Vernal rock art in northeastern Utah by J.Q. Jacobs in 1990. The Three Kings panel also contains more accurate ratios, ratios related to other planets, and apparent astronomical symbolism.

WikidataRate this definition:0.0 / 0 votes

1. Octaeteris

   In astronomy, an octaeteris is the period of eight solar years after which the moon phase occurs on the same day of the year plus one or two days. This period is also in a very good synchronicity with five Venusian visibility cycles and thirteen Venusian revolutions around the sun. This means, that if Venus is visible beside the moon, after eight years the two will be again close together near the same date of the calendar. The Octaeteris, also known as Oktaeteris, was noted by Cleostratus in ancient Greece as a 2923.5 day cycle. The 8 year short lunisolar cycle was probably known to many ancient cultures. The mathematical proportions of the Octaeteris cycles were noted in Classic Vernal rock art in northeastern Utah by J. Q. Jacobs in 1990. The Three Kings panel also contains more accurate ratios, ratios related to other planets, and apparent astronomic symbolism.

How to pronounce octaeteris?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say octaeteris in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of octaeteris in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of octaeteris in Pythagorean Numerology is: 7

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Octaeteris
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Octaeteris
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=octaeteris