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2020-05-22 or 2020-08-19. This depends on the exact definition of the seasons: If northern summer is deemed to begin at the June solstice then the 2020-06-21 new moon occurs in northern summer. If the seasons are defined in quarter tropical years from the December solstice then the 2020-06-21 new moon occurs in northern spring.
A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Friday, January 10, 2020, [1] with an umbral magnitude of −0.1146. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into the Earth's ...
There will be 230 lunar eclipses in the 21st century (2001–2100): 87 penumbral, 58 partial and 85 total. [1]Eclipses are listed in sets by lunar years, repeating every 12 months for each node.
This is an accepted version of this page This is the latest accepted revision, reviewed on 13 June 2024. Position of the year within the 19-year Metonic cycle Not to be confused with Golden ratio. Month of January from Calendarium Parisiense (fourth quarter of the 14th c.). The golden numbers, in the leftmost column, indicate the date of the new moon for each year in the 19-year cycle A golden ...
A lunisolar calendar was found at Warren Field in Scotland and has been dated to c. 8000 BC, during the Mesolithic period. [2] [3] Some scholars argue for lunar calendars still earlier—Rappenglück in the marks on a c. 17,000 year-old cave painting at Lascaux and Marshack in the marks on a c. 27,000 year-old bone baton—but their findings remain controversial.
2020 on the Moon (1 P) This page was last edited on 12 December 2024, at 04:45 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 ...
The ecclesiastical calendar valid for the Julian and Gregorian calendar are described in detail by Grotefend, [1] Ginzel [2] and in the Explanatory Supplement to The Astronomical Ephemeris. [3] The ecclesiastical new moon which falls on or next after March 8 is of special importance, since it is the paschal new moon that begins the paschal ...
The Lunation Number or Lunation Cycle is a number given to each lunation beginning from a specific one in history. Several conventions are in use. The most commonly used was the Brown Lunation Number (BLN), which defines "lunation 1" as beginning at the first new moon of 1923, the year when Ernest William Brown's lunar theory was introduced in the American Ephemeris and Nautical Almanac.
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