Search results
Results from the WOW.Com Content Network
The mean tropical year on January 1, 2000, was 365.242 189 7 or 365 ephemeris days, 5 hours, 48 minutes, 45.19 seconds. This changes slowly; an expression suitable for calculating the length of a tropical year in ephemeris days, between 8000 BC and 12000 AD is
The Southward equinox was "New Year's Day" in the French Republican Calendar, which was in use from 1793 to 1805. The French First Republic was proclaimed and the French monarchy was abolished on September 21, 1792, making the following day (the equinox day that year) the first day of the "Republican Era" in France.
The mean tropical year is approximately 365 days, 5 hours, 48 minutes, 45 seconds, using the modern definition [13] (= 365.242 19 d × 86 400 s). The length of the tropical year varies a bit over thousands of years because the rate of axial precession is not constant.
The tropical year is the length of time that the Sun, as viewed from the Earth, takes to return to the same position along the ecliptic (its path among the stars on the celestial sphere). The sidereal year is the length of time that the Sun takes to return to the same position with respect to the stars of the celestial sphere. Precession causes ...
One Callippic cycle corresponds to: 940 synodic months; 1,020.084 draconic months; 80.084 eclipse years (160 eclipse seasons); 1,007.410 anomalistic months; The 80 eclipse years means that if there is a solar eclipse (or lunar eclipse), then after one callippic cycle a New Moon (resp. Full Moon) will take place at the same node of the orbit of the Moon, and under these circumstances another ...
An off-season Australian tropical cyclone is a tropical cyclone that existed in the Australian Region, between 90°E and 160°E, outside of the official season. The World Meteorological Organization currently defines the season as occurring between 1 November and 30 April, of the following year, which is when the majority of all tropical ...
Indeed, from the values of the tropical year (365.2421896698 days) and the synodic month (29.530588853) cited in the respective articles of Wikipedia, it follows that the length of 228=12×19 tropical years is about 83,275.22 days, shorter than the length of 12×235 synodic months—namely about 83,276.26 days—by one day plus about one hour.
Australia has the third-largest exclusive economic zone of 8,148,250 km 2 (3,146,060 sq mi). This EEZ does not include the Australian Antarctic Territory (an additional 5,896,500 km 2 (2,276,700 sq mi)). Australia has the largest area of ocean jurisdiction of any country on Earth. [5] It has no land borders.