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Solar Eclipse Of July 11, 1991
A total solar eclipse occurred at the Moon’s descending node of the orbit on Thursday, July 11, 1991. 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. Totality began over the Pacific Ocean and Hawaii moving across Mexico, down through Central America and across South America ending over Brazil. It lasted for 6 minutes and 53.08 seconds at the point of maximum eclipse. There will not be a longer total eclipse until Solar eclipse of June 13, 2132, June 13, 2132. This was the largest total solar eclipse of Solar Saros 136, Solar Saros series 136, because eclipse magnitude was 1.07997. This ... [...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] |
Costa Rica
Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the northeast, Panama to the southeast, the Pacific Ocean to the southwest, and Maritime boundary, maritime border with Ecuador to the south of Cocos Island. It has a population of around five million in a land area of . An estimated 333,980 people live in the capital and largest city, San José, Costa Rica, San José, with around two million people in the surrounding metropolitan area. The sovereign state is a Unitary state, unitary Presidential system, presidential Constitution of Costa Rica, constitutional republic. It has a long-standing and stable democracy and a highly educated workforce. The country spends roughly 6.9% of its budget (2016) on education, compared to a global average of 4.4%. Its economy, once heavily dependent on agricultu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1991 In El Salvador
File:1991 Events Collage.png, From left, clockwise: Boris Yeltsin, 1991 Russian presidential election, elected as Russia's first President of Russia, president, waves the new flag of Russia after the 1991 Soviet coup d'état attempt, orchestrated by Soviet Union, Soviet hardliners; Mount Pinatubo 1991 eruption of Mount Pinatubo, erupts in the Philippines, making it the List of large historical volcanic eruptions, second-largest Types of volcanic eruptions, volcanic eruption of the 20th century; MTS Oceanos sinks off the coast of South Africa, but the crew notoriously abandons the vessel before the passengers are rescued; Dissolution of the Soviet Union: The Flag of the Soviet Union, Soviet flag is lowered from the Kremlin for the last time and replaced with the flag of the Russian Federation; The United States and soon-to-be dissolved Soviet Union sign the START I Treaty; A tropical cyclone 1991 Bangladesh cyclone, strikes Bangladesh, killing nearly 140,000 people; Lauda Air Flight ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1991 In Guatemala
File:1991 Events Collage.png, From left, clockwise: Boris Yeltsin, elected as Russia's first president, waves the new flag of Russia after the 1991 Soviet coup d'état attempt, orchestrated by Soviet hardliners; Mount Pinatubo erupts in the Philippines, making it the second-largest volcanic eruption of the 20th century; MTS Oceanos sinks off the coast of South Africa, but the crew notoriously abandons the vessel before the passengers are rescued; Dissolution of the Soviet Union: The Soviet flag is lowered from the Kremlin for the last time and replaced with the flag of the Russian Federation; The United States and soon-to-be dissolved Soviet Union sign the START I Treaty; A tropical cyclone strikes Bangladesh, killing nearly 140,000 people; Lauda Air Flight 004 crashes after one of its thrust reversers activates during the flight; A United States-led coalition initiates Operation Desert Storm to remove Iraq and Saddam Hussein from Kuwait, 300x300px, thumb rect 0 0 200 200 1991 So ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1991 In Mexico
Events in the year 1991 in Mexico. Incumbents Federal government * President: Carlos Salinas de Gortari * Interior Secretary (SEGOB): Fernando Gutiérrez Barrios * Secretary of Foreign Affairs (SRE): Fernando Solana Morales * Communications Secretary (SCT): Andrés Caso Lombardo * Secretary of Defense (SEDENA): Antonio Riviello Bazán * Secretary of Navy: Luis Carlos Ruano Angulo * Secretary of Labor and Social Welfare: Arsenio Farell Cubillas * Secretary of Welfare: Patricio Chirinos Calero/Luis Donaldo Colosio * Secretary of Public Education: Manuel Bartlett Díaz * Tourism Secretary (SECTUR): Silvia Hernández Enríquez * Secretary of the Environment (SEMARNAT): María de los Angeles Moreno/Guillermo Jiménez Morales * Secretary of Health (SALUD): Jesús Kumate Rodríguez Supreme Court * President of the Supreme Court: Ulises Schmill Ordóñez Governors * Aguascalientes: Miguel Ángel Barberena Vega, (Institutional Revolutionary Party, PRI) * Baja California: Ernesto R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
July 1991 Events
July is the seventh month of the year in the Julian calendar, Julian and Gregorian calendars and is the fourth of seven months to have a length of 31 days. It was named by the Roman Senate in honour of Roman general Julius Caesar in 44 B.C., it being the month of his birth. Before then it was called Quintilis, being the fifth month of the calendar that started with March. It is on average the warmest month in most of the Northern Hemisphere, where it is the second month of summer, and the coldest month in much of the Southern Hemisphere, where it is the second month of winter. The second half of the year commences in July. In the Southern Hemisphere, July is the seasonal equivalent of January in the Northern hemisphere. "Dog days" are considered to begin in early July in the Northern Hemisphere, when the hot sultry weather of summer usually starts. Lamb and mutton#Classifications, Spring lambs born in late winter or early spring are usually sold before 1 July. July symbols ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1991 In Science
The year 1991 in science and technology involved many significant events, some listed below. Astronomy and space exploration * May 18 – Helen Sharman becomes the first British person in space, flying with the Soyuz TM-12 mission. * October 29 – The ''Galileo'' probe becomes the first spacecraft to visit an asteroid (951 Gaspra). * Steven Balbus and John F. Hawley publish their insights on magnetorotational instability. * Asteroid 6859 Datemasamune is discovered by Masahiro Koishikawa. * Asteroid 11514 Tsunenaga is discovered by Masahiro Koishikawa. * There are four lunar eclipses: three penumbral on January 30, July 26, and June 27, and one minor partial lunar eclipse on December 21. * There are two solar eclipses: one annular eclipse on January 15, and a very long total eclipse on July 11 (lasting 6 minutes and 53 seconds). Chemistry * Carbon nanotubes discovered in the insoluble material of arc-burned graphite rods by Sumio Iijima of NEC. Computer science * Fe ... [...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] |
APOD
Astronomy Picture of the Day (APOD) is a website provided by NASA and Michigan Technological University (MTU). According to the website, "Each day a different image or photograph of our universe is featured, along with a brief explanation written by a professional astronomer." The photograph does not necessarily correspond to a celestial event on the exact day that it is displayed, and images are sometimes repeated. However, the pictures and descriptions often relate to current events in astronomy and space exploration. The text has several hyperlinks to more pictures and websites for more information. The images are either visible spectrum photographs, images taken at non-visible wavelengths and displayed in false color, video footage, animations, artist's conceptions, or micrographs that relate to space or cosmology. Past images are stored in the APOD Archive, with the first image appearing on June 16, 1995. This initiative has received support from NASA, the National Science Fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
December 1991 Lunar Eclipse
A partial lunar eclipse took place on Saturday, December 21, 1991, the last of four lunar eclipses in 1991. The moon grazed the northern edge of the umbral shadow. It occurred near perigee, and as described, such event was known as a supermoon. Visibility This small partial eclipse was visible from North America, eastern Asia, Australia, and western South America. Related eclipses Eclipses of 1991 * An annular solar eclipse on January 15. * A penumbral lunar eclipse on January 30. * A penumbral lunar eclipse on June 27. * A total solar eclipse on July 11. * A penumbral lunar eclipse on July 26. * A partial lunar eclipse on December 21. Lunar year series Metonic cycles (19 years) Half-Saros cycle A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, ''The half-saros'' This lunar eclipse is related to two partial solar eclipses of Solar Saros 122 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
July 1991 Lunar Eclipse
A penumbral lunar eclipse took place on Friday, July 26, 1991, the third of four lunar eclipses in 1991. This was the 2nd member of Lunar Saros 148. The previous event was on 15 July 1973, and the 1st eclipse of the series. The next event was on 6 August 2009. Visibility Relations to other lunar eclipses Eclipses of 1991 * An annular solar eclipse on January 15. * A penumbral lunar eclipse on January 30. * A penumbral lunar eclipse on June 27. * A total solar eclipse on July 11. * A penumbral lunar eclipse on July 26. * A partial lunar eclipse on December 21. Saros series This eclipse is part of Saros cycle series 148. Lunar year series Half-Saros cycle A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, ''The half-saros'' This lunar eclipse is related to two partial solar eclipses of Solar Saros 155. See also *List of lunar eclipses *List o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
