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Solar Eclipse Of August 12, 1654
A total solar eclipse occurred on August 12, 1654. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. Observations and history The eclipse occurred during the Battle of Shklow (1654). Related eclipses It is a part of solar Saros 120. See also * List of solar eclipses visible from the United Kingdom 1000–2090 AD This is a partial list of solar eclipses visible from the British Isles between AD 1AD 2091. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partially obscuring Earth's view of the Sun. Below i ... References NASA ... [...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] |
Apparent Diameter
The angular diameter, angular size, apparent diameter, or apparent size is an angular distance describing how large a sphere or circle appears from a given point of view. In the vision sciences, it is called the visual angle, and in optics, it is the angular aperture (of a lens). The angular diameter can alternatively be thought of as the angular displacement through which an eye or camera must rotate to look from one side of an apparent circle to the opposite side. Humans can resolve with their naked eyes diameters of up to about 1 arcminute (approximately 0.017° or 0.0003 radians). This corresponds to 0.3 m at a 1 km distance, or to perceiving Venus as a disk under optimal conditions. Formula The angular diameter of a circle whose plane is perpendicular to the displacement vector between the point of view and the center of said circle can be calculated using the formula :\delta = 2\arctan \left(\frac\right), in which \delta is the angular diameter, and d is t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Shklow (1654)
The Battle of Szkłów or battle of Shkloŭ or battle of Shklov on August 12, 1654 was one of the first battles of the Russo-Polish War (1654–67); it ended with a Polish victory. A small Polish–Lithuanian force of about 6,000–7,000 under Great Lithuanian Hetman Janusz Radziwiłł surprised a numerically superior Russian force (of 40,000; some estimates speak of 70,000, but they are likely too high) under knyaz Yakov Cherkassky near Shklow ( pl, Szkłów). The battle took place during a solar eclipse. The Russian forces, due to their surprise, were engaged by the Poles unprepared and in smaller portions, which were defeated in turn. Eventually the Poles forced the entire Russian army to retreat; the losses are estimated at about 700 for the Poles and 7,000 for the Russians (although they may be overestimated for both sides). Prelude The conflict was triggered by the Khmelnytsky Rebellion of Ukrainian Cossacks against the Polish–Lithuanian Commonwealth. The Cossack leader, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Saros 120
The Saros cycle The saros () is a period of exactly 223 synodic months, approximately 6585.3211 days, or 18 years, 10, 11, or 12 days (depending on the number of leap years), and 8 hours, that can be used to predict eclipses of the Sun and Moon. One saros period ... series 120 for solar eclipses occurs at the Moon's descending node, repeating every 18 years, 11 days, containing 71 events. 55 of these are umbral eclipses. The series started with a partial solar eclipse on May 27, 933 AD, and transitioned into an annular eclipse on August 11, 1059. It was a hybrid event for 3 dates: May 8, 1510, through May 29, 1546, and are total eclipses from June 8, 1564 through March 30, 2033. The series ends at member 71 as a partial eclipse on July 7, 2195. The longest duration of totality was 2 minutes, 50 seconds on March 9, 1997. All eclipses in this series occurs at the Moon's descending node. Umbral eclipses Umbral eclipses (annular, total and hybrid) can be further classified as e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Solar Eclipses Visible From The United Kingdom 1000–2090 AD
This is a partial list of solar eclipses visible from the British Isles between AD 1AD 2091. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partially obscuring Earth's view of the Sun. Below is a complete list of total and annular eclipses visible anywhere within the modern extent of the United Kingdom between AD 1 and AD 2090 and a description of forthcoming partial solar eclipses visible in Britain in the next fifteen years or so. For a complete list of solar eclipses visible from the United Kingdom between AD 1501 and AD 2500, see the Journal of the British Astronomical Association, February 2001. 5th century (401-500) * 16 April 413 ** A total eclipse was visible in far southern Ireland, northern Wales, and the English Midlands. Totality lasted about 2 minutes. * 28 May 458 ** Another total eclipse of similar duration (2:21), it followed a somewhat more oblique path, from South Wales to Lincolnshire. The point of greatest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Total Solar Eclipses
Total may refer to: Mathematics * Total, the summation of a set of numbers * Total order, a partial order without incomparable pairs * Total relation, which may also mean ** connected relation (a binary relation in which any two elements are comparable). * Total function, a partial function that is also a total relation Business * TotalEnergies, a French petroleum company * Total (cereal), a food brand by General Mills * Total, a brand of strained yogurt made by Fage * Total, a database management system marketed by Cincom Systems * Total Linhas Aéreas - a brazilian airline * Total, a line of dental products by Colgate Music and culture * Total (group), an American R&B girl group * '' Total: From Joy Division to New Order'', a compilation album * ''Total'' (Sebastian album) * ''Total'' (Total album) * ''Total'' (Teenage Bottlerocket album) * ''Total'' (Seigmen album) * ''Total'' (Wanessa album) * ''Total'' (Belinda Peregrín album) * ''Total 1'', an annual compilation alb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1654 In Science
The year 1654 in science and technology involved some significant events. Astronomy * Sicilian astronomer Giovanni Battista Hodierna publishes ''De systemate orbis cometici, deque admirandis coeli characteribus'' including a catalog of comets and nebulae. Mathematics * At the prompting of the Chevalier de Méré, Blaise Pascal corresponds with Pierre de Fermat on gambling problems, from which is born the theory of probability. Physics * May 8 – Otto von Guericke demonstrates the effectiveness of his vacuum pump and the power of atmospheric pressure using the Magdeburg hemispheres before Ferdinand III, Holy Roman Emperor, in Regensburg. Births * December 27 – Jakob Bernoulli, Swiss mathematician (died 1705). * John Banister, English missionary and botanist (died 1692). * ''prob. date'' – Eleanor Glanville, English entomologist (died 1709). Deaths * August 31 – Ole Worm, Danish physician, natural historian and antiquary (born 1588) * October 18 – Nicholas Culpeper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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