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  2. Tropical year - Wikipedia

    en.wikipedia.org/wiki/Tropical_year

    The average year length is 146,097/400 = 365 + 97 ⁄ 400 = 365.2425 days per year, a close approximation to the mean tropical year of 365.2422 days. [ 35 ] The Gregorian calendar is a reformed version of the Julian calendar organized by the Catholic Church and enacted in 1582.

  3. Climate of the Philippines - Wikipedia

    en.wikipedia.org/wiki/Climate_of_the_Philippines

    The average year-round temperature measured from all the weather stations in the Philippines, except Baguio, is 26.6 °C (79.9 °F). Cooler days are usually felt in the month of January with temperature averaging at 25.5 °C (77.9 °F) and the warmest days, in the month of May with a mean of 28.3 °C (82.9 °F). [ 1 ]

  4. PAGASA - Wikipedia

    en.wikipedia.org/wiki/PAGASA

    The Philippine Atmospheric, Geophysical and Astronomical Services Administration (Filipino: Pangasiwaan ng Pilipinas sa Serbisyong Atmosperiko, Heopisiko at Astronomiko, [4] abbreviated as PAGASA, which means "hope" as in the Tagalog word pag-asa) is the National Meteorological and Hydrological Services (NMHS) agency of the Philippines mandated to provide protection against natural calamities ...

  5. Geography of the Philippines - Wikipedia

    en.wikipedia.org/wiki/Geography_of_the_Philippines

    Republic Act No. 9522, "An Act to Define the Baselines of the Territorial Sea of the Philippines", [66] describes an irregular polygon which fits within a box with its center at 121°44'47.45"E 12°46'6.1252"N, a point also roughly in the center of the Tablas Strait. The CIA Factbook locates the Philippines at 13°N 122°E. [60]

  6. Typhoon Man-yi (2024) - Wikipedia

    en.wikipedia.org/wiki/Typhoon_Man-yi_(2024)

    Typhoon Man-yi, known in the Philippines as Super Typhoon Pepito, was a powerful and long-tracked tropical cyclone that impacted the Philippines in mid–November 2024. . Closely following Tropical Storm Trami and Typhoons Kong-rey, Yinxing, Toraji and Usagi, Man-yi became the sixth and final consecutive tropical system to affect the country in less than a

  7. Hipparchic cycle - Wikipedia

    en.wikipedia.org/wiki/Hipparchic_cycle

    The length of 437=23×19 tropical years (about 159,610.837 days) is shorter than that of 23×235 synodic months (about 159,612.833 days) by almost exactly two days, up to only six minutes. The durations between the equinoxes (and solstices) are not equal, and will cycle around each other [ clarification needed ] over millennia.

  8. September equinox - Wikipedia

    en.wikipedia.org/wiki/September_equinox

    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 start of every year was ...

  9. Callippic cycle - Wikipedia

    en.wikipedia.org/wiki/Callippic_cycle

    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 ...