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Solar Eclipse Of September 21, 2025
A partial solar eclipse will occur on September 21, 2025. A solar eclipse occurs when the Moon passes between the Earth and the Sun The Sun is the star at the center of the Solar System. It is a nearly perfect ball of hot plasma, heated to incandescence by nuclear fusion reactions in its core. The Sun radiates this energy mainly as light, ultraviolet, and infrared radi ..., thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth. Images Animated path Related eclipses Eclipses of 2025 * A total lunar eclipse on March 14. * A partial solar eclipse on March 29. * A total lunar eclipse on September 7. * A partial solar eclipse on September 21. Solar eclipses of 2022–2025 Metonic series References External links 2025 9 21 2025 in science September 2025 events 2025 9 21 2025 9 21 {{Solar-eclipse-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Eclipse
A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of the Earth, totally or partially. Such an alignment occurs during an eclipse season, approximately every six months, during the new moon phase, when the Moon's orbital plane is closest to the plane of the Earth's orbit. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses, only part of the Sun is obscured. Unlike a lunar eclipse, which may be viewed from anywhere on the night side of Earth, a solar eclipse can only be viewed from a relatively small area of the world. As such, although total solar eclipses occur somewhere on Earth every 18 months on average, they recur at any given place only once every 360 to 410 years. If the Moon were in a perfectly circular orbit and in the same orbital plane as Earth, there would be total solar eclipses once a month, at every new moon. Instead, because the Moon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of Australia). The Moon is a planetary-mass object with a differentiated rocky body, making it a satellite planet under the geophysical definitions of the term and larger than all known dwarf planets of the Solar System. It lacks any significant atmosphere, hydrosphere, or magnetic field. Its surface gravity is about one-sixth of Earth's at , with Jupiter's moon Io being the only satellite in the Solar System known to have a higher surface gravity and density. The Moon orbits Earth at an average distance of , or about 30 times Earth's diameter. Its gravitational influence is the main driver of Earth's tides and very slowly lengthens Earth's day. The Moon's orbit around Earth has a sidereal period of 27.3 days. During each synodic period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surface is made up of the ocean, dwarfing Earth's polar ice, lakes, and rivers. The remaining 29% of Earth's surface is land, consisting of continents and islands. Earth's surface layer is formed of several slowly moving tectonic plates, which interact to produce mountain ranges, volcanoes, and earthquakes. Earth's liquid outer core generates the magnetic field that shapes the magnetosphere of the Earth, deflecting destructive solar winds. The atmosphere of the Earth consists mostly of nitrogen and oxygen. Greenhouse gases in the atmosphere like carbon dioxide (CO2) trap a part of the energy from the Sun close to the surface. Water vapor is widely present in the atmosphere and forms clouds that cover most of the planet. More solar e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SE2025Sep21P
SE, Se, or Sé may refer to: Arts and entertainment * ''Sé'' (album), by Lúnasa, 2006 * Se (instrument), a traditional Chinese musical instrument Businesses and organizations * Sea Ltd (NYSE: SE), tech conglomerate headquartered in Singapore * Slovenské elektrárne, electric utility company in Slovakia * Societas Europaea, a European Union public company * XL Airways France, IATA airline designator SE * Southeastern (train operating company), or SE Trains Limited, in England Places * Sè, Atlantique, Benin * Sè, Mono, Benin *Subprefecture of Sé, São Paulo, Brazil **Sé (district of São Paulo) **Sé (São Paulo Metro), a station *Sé, Hungary *Sé, Macau *Sé (Angra do Heroísmo), Terceira, Azores, Portugal *Sé (Braga), Portugal *Sé (Bragança), Faro, Portugal *Sé (Funchal), Madeira, Portugal *Sé, Lamego, Portugal *Sé (Lisbon), Portugal *Sé, Portalegre, Portugal *Sé (Porto), Portugal * SE postcode area, London, England * Sergipe (SE), a state of Brazil * Sweden, I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
March 2025 Lunar Eclipse
A total lunar eclipse will take place on Friday, 14 March 2025, the first of two total lunar eclipses in 2025. The Moon will take place near apogee during this eclipse, making it appear smaller than usual. The second eclipse will take place on 7 September 2025, happening near perigee. Occurring only 3.4 days before apogee (Apogee on 17 March 2025), the Moon's apparent diameter will be 5.4% smaller than average. This lunar eclipse marks the beginning of another ''almost tetrad'', with 3 total lunar eclipses and a deep partial lunar eclipse (greater than 90%), with others being 07 Sep 2025 (T), 03 Mar 2026 (T) and 28 Aug 2026 (P). Visibility It will be completely visible from the Americas, will be seen rising over New Zealand and eastern Asia, and setting over western Europe and western Africa. Related eclipses Eclipses of 2025 * A total lunar eclipse on 14 March. * A partial solar eclipse on 29 March. * A total lunar eclipse on 7 September. * A partial solar eclipse o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Eclipse Of March 29, 2025
A partial solar eclipse will occur on Saturday, March 29, 2025. A solar eclipse occurs when the Moon passes between Earth and the Sun The Sun is the star at the center of the Solar System. It is a nearly perfect ball of hot plasma, heated to incandescence by nuclear fusion reactions in its core. The Sun radiates this energy mainly as light, ultraviolet, and infrared radi ..., thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth. Images Animated path Related eclipses Eclipses of 2025 * A total lunar eclipse on March 14. * A partial solar eclipse on March 29. * A total lunar eclipse on September 7. * A partial solar eclipse on September 21. Solar eclipses of 2022–2025 Saros 149 Tritos series Metonic series References External links 2025 3 29 2025 in science March 2025 events 2025 3 29 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
September 2025 Lunar Eclipse
A total lunar eclipse will take place between Sunday, September 7 and Monday, September 8, 2025. The Moon will barely miss the center of the Earth's shadow. It will be the second of two total lunar eclipses. Occurring roughly 3 days before perigee, the Moon will appear larger than usual. This eclipse is the second of an ''almost tetrad'', with others being 14 Mar 2025 (T), 03 Mar 2026 (T) and 28 Aug 2026 (P). Visibility It will be completely visible over much of Asia, Australia and eastern Africa, will be seen rising over the rest of Africa and Europe, and setting over eastern Asia and New Zealand. Related eclipses Eclipses of 2025 * A total lunar eclipse on March 14. * A partial solar eclipse on March 29. * A total lunar eclipse on September 7. * A partial solar eclipse on September 21. Lunar year series Saros series Lunar Saros 128 contains 15 total lunar eclipses between 1845 and 2097 (in years 1845, 1863, 1881, 1899, 1917, 1935, 1953, 1971, 1989, 2007, 2025, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Partial Solar Eclipses
Partial may refer to: Mathematics *Partial derivative, derivative with respect to one of several variables of a function, with the other variables held constant ** ∂, a symbol that can denote a partial derivative, sometimes pronounced "partial dee" **Partial differential equation, a differential equation that contains unknown multivariable functions and their partial derivatives Other uses *Partial application, in computer science the process of fixing a number of arguments to a function, producing another function *Partial charge or net atomic charge, in chemistry a charge value that is not an integer or whole number *Partial fingerprint, impression of human fingers used in criminology or forensic science *Partial seizure or focal seizure, a seizure that initially affects only one hemisphere of the brain * Partial or Part score, in contract bridge a trick score less than 100, as well as other meanings * Partial or Partial wave, one sound wave of which a complex tone is composed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2025 In Science
The following scientific events are scheduled to occur in 2025. Predicted and scheduled events * NASA's IMAP probe will launch toward lagrange point 1 to collect interstellar dust and investigate space weather. * The Venus Life Finder spacecraft is expected to arrive at Venus. * The Vera C. Rubin Observatory is expected to begin science operations in late 2025. * Science-related budgets ** : Various details about planned science-related spending for 2025 have been described with some information on the planned research subjects or areas. See also * :Science events * :Science timelines * List of emerging technologies * List of years in science __NOTOC__ The following entries cover events related to science or technology which occurred in the listed year. Before 2000s * 0s: 1st century in science * 100s: 2nd century in science * 200s: 3rd century in science * 300s: 4th century in s ... References External links * {{2020s, state=expanded 21st century ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
September 2025 Events
September is the ninth month of the year in both the Julian and Gregorian calendars, the third of four months to have a length of 30 days, and the fourth of five months to have a length of fewer than 31 days. September in the Northern Hemisphere and March in the Southern Hemisphere are seasonally equivalent. In the Northern hemisphere, the beginning of the meteorological autumn is on 1 September. In the Southern hemisphere, the beginning of the meteorological spring is on 1 September. September marks the beginning of the ecclesiastical year in the Eastern Orthodox Church. It is the start of the academic year in many countries of the northern hemisphere, in which children go back to school after the summer break, sometimes on the first day of the month. September (from Latin ''septem'', "seven") was originally the seventh of ten months in the oldest known Roman calendar, the calendar of Romulus , with March (Latin '' Martius'') the first month of the year until pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
21st-century Solar Eclipses
The 1st century was the century spanning AD 1 ( I) through AD 100 ( C) according to the Julian calendar. It is often written as the or to distinguish it from the 1st century BC (or BCE) which preceded it. The 1st century is considered part of the Classical era, epoch, or historical period. The 1st century also saw the appearance of Christianity. During this period, Europe, North Africa and the Near East fell under increasing domination by the Roman Empire, which continued expanding, most notably conquering Britain under the emperor Claudius (AD 43). The reforms introduced by Augustus during his long reign stabilized the empire after the turmoil of the previous century's civil wars. Later in the century the Julio-Claudian dynasty, which had been founded by Augustus, came to an end with the suicide of Nero in AD 68. There followed the famous Year of Four Emperors, a brief period of civil war and instability, which was finally brought to an end by Vespasian, ninth Roman emperor, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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