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December 2010 Lunar Eclipse
A total lunar eclipse occurred from 5:27 to 11:06 UTC on 21 December 2010, coinciding with the date of the Winter solstice in the Northern Hemisphere and Summer solstice in the Southern Hemisphere. It was visible in its entirety as a total lunar eclipse in North and South America, Iceland, Ireland, Britain and northern Scandinavia. Occurrence The eclipse of December 2010 was the first total lunar eclipse in almost three years, since the February 2008 lunar eclipse. It is the second of two lunar eclipses in 2010. The first was a partial lunar eclipse on June 26, 2010. The eclipse was the first total lunar eclipse to occur on the day of the Northern Winter Solstice (Southern Summer Solstice) since 1638, and only the second in the Common Era. Related eclipses This eclipse occurred at the descending node of the moon's orbit. Lunar eclipses are always paired with a solar eclipse either 2 weeks before or after at new moon in the opposite node. In this case, it was followed by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coordinated Universal Time
Coordinated Universal Time or UTC is the primary time standard by which the world regulates clocks and time. It is within about one second of mean solar time (such as UT1) at 0° longitude (at the IERS Reference Meridian as the currently used prime meridian) and is not adjusted for daylight saving time. It is effectively a successor to Greenwich Mean Time (GMT). The coordination of time and frequency transmissions around the world began on 1 January 1960. UTC was first officially adopted as CCIR Recommendation 374, ''Standard-Frequency and Time-Signal Emissions'', in 1963, but the official abbreviation of UTC and the official English name of Coordinated Universal Time (along with the French equivalent) were not adopted until 1967. The system has been adjusted several times, including a brief period during which the time-coordination radio signals broadcast both UTC and "Stepped Atomic Time (SAT)" before a new UTC was adopted in 1970 and implemented in 1972. This change also a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
June 2011 Lunar Eclipse
A total lunar eclipse took place on 15 June 2011. It was the first of two such eclipses in 2011. The second occurred on 10 December 2011. While the visual effect of a total eclipse is variable, the Moon may have been stained a deep orange or red colour at maximum eclipse. This was a relatively rare central lunar eclipse, in which the center point of Earth's shadow passes across the moon. The last time a lunar eclipse was closer to the center of the earth's shadow was on 16 July 2000. The next central total lunar eclipse was on 27 July 2018 over South America, western Africa, and Europe, and setting over eastern Asia. Visibility and viewing In western Asia, Australia, and the Philippines, the lunar eclipse was visible just before sunrise. It was very visible in the clear and cloudless night sky throughout eastern and southeast Asia. Africa, far eastern Russia and Europe witnessed the whole event even in the late stages (as in partial lunar eclipse). The Americas (includin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Standard Time
The North American Central Time Zone (CT) is a time zone in parts of Canada, the United States, Mexico, Central America, some Caribbean Islands, and part of the Eastern Pacific Ocean. Central Standard Time (CST) is six hours behind Coordinated Universal Time (UTC). During summer, most of the zone uses daylight saving time (DST), and changes to Central Daylight Time (CDT) which is five hours behind UTC. The largest city in the Central Time Zone is Mexico City; the Mexico City metropolitan area is the largest metropolitan area in the zone and in North America. Regions using (North American) Central Time Canada The province of Manitoba is the only province or territory in Canada that observes Central Time in all areas. The following Canadian provinces and territories observe Central Time in the areas noted, while their other areas observe Eastern Time: * Nunavut (territory): western areas (most of Kivalliq Region and part of Qikiqtaaluk Region) * Ontario (province): a port ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Time Zone
The Eastern Time Zone (ET) is a time zone encompassing part or all of 23 states in the eastern part of the United States, parts of eastern Canada, the state of Quintana Roo in Mexico, Panama, Colombia, mainland Ecuador, Peru, and a small portion of westernmost Brazil in South America, along with certain Caribbean and Atlantic islands. Places that use: * Eastern Standard Time (EST), when observing standard time (autumn/winter), are five hours behind Coordinated Universal Time ( UTC−05:00). * Eastern Daylight Time (EDT), when observing daylight saving time (spring/summer), are four hours behind Coordinated Universal Time ( UTC−04:00). On the second Sunday in March, at 2:00 a.m. EST, clocks are advanced to 3:00 a.m. EDT leaving a one-hour "gap". On the first Sunday in November, at 2:00 a.m. EDT, clocks are moved back to 1:00 a.m. EST, thus "duplicating" one hour. Southern parts of the zone (Panama and the Caribbean) do not observe daylight saving time ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visibility Lunar Eclipse 2010-12-21
The visibility is the measure of the distance at which an object or light can be clearly discerned. In meteorology it depends on the transparency of the surrounding air and as such, it is unchanging no matter the ambient light level or time of day. It is reported within surface weather observations and METAR code either in meters or statute miles, depending upon the country. Visibility affects all forms of traffic: roads, sailing and aviation. The geometric range of vision is limited by the curvature of the earth and depends on the eye level and the height of the object being viewed. In geodesy, the atmospheric refraction must be taken into account when calculating geodetic visibility. Meteorological visibility Definition ICAO Annex 3 ''Meteorological Service for International Air Navigation'' contains the following definitions and note: :a) the greatest distance at which a black object of suitable dimensions, situated near the ground, can be seen and recognized when obse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2010-12-21 Lunar Eclipse Sketch
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saros Series
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 after an eclipse, the Sun, Earth, and Moon return to approximately the same relative geometry, a near straight line, and a nearly identical eclipse will occur, in what is referred to as an eclipse cycle. A sar is one half of a saros. A series of eclipses that are separated by one saros is called a ''saros series''. It corresponds to: *6,585.321347 solar days *18.029 years *223 synodic months *241.999 draconic months *18.999 eclipse years (38 eclipse seasons) *238.992 anomalistic months The 19 eclipse years means that if there is a solar eclipse (or lunar eclipse), then after one saros a new moon will take place at the same node of the orbit of the Moon, and under these circumstances another eclipse can occur. History The earliest disco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
December 2028 Lunar Eclipse
A total lunar eclipse will take place on Sunday, December 31, 2028. It will occur during a blue moon and is the first such eclipse to happen on New Year's Eve and New Year's Day since December 2009, and the first total lunar eclipse on New Year's Day in history. The next such eclipse will be on December 2047. Visibility It will be completely visible over Asia and western Australia, will be seen rising over other areas of Africa and Europe, and setting over eastern Australia and New Zealand. Related lunar eclipses Eclipses in 2028 * A partial lunar eclipse on Wednesday, 12 January 2028. * An annular solar eclipse on Wednesday, 26 January 2028. * A partial lunar eclipse on Thursday, 6 July 2028. * A total solar eclipse on Saturday, 22 July 2028. * A total lunar eclipse on Sunday, 31 December 2028. Lunar year series Saros series This is the 19th of 26 total lunar eclipses in series 125. The previous occurrence was on December 21, 2010 and the next will occur on Janu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
December 1992 Lunar Eclipse
A total lunar eclipse took place on Wednesday, December 9, 1992, the second of two lunar eclipses in 1992, the first was a partial lunar eclipse on Monday, June 15. Visibility It is visibly seen throughout the world including Americas (North and South America), Europe, Africa, Asia and Western Australia (including western New Guinea). The lunar eclipse was witnessed in the Philippines on the midday hours of December 10, two years after the total lunar eclipse happened on February 9, 1990. According to Fred Espenak, this was the darkest eclipse in a decade, caused by the June 15, 1991 eruptions of Mount Pinatubo in the Philippines. Related eclipses Eclipses of 1992 * An annular solar eclipse (ascending node) on January 4. * A partial lunar eclipse (ascending node) on June 15. * A total solar eclipse (descending node) on June 30. * A total lunar eclipse (descending node) on December 9. * A partial solar eclipse (ascending node) on December 24. Lunar year series ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saros (astronomy)
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 after an eclipse, the Sun, Earth, and Moon return to approximately the same relative geometry, a near straight line, and a nearly identical eclipse will occur, in what is referred to as an eclipse cycle. A sar is one half of a saros. A series of eclipses that are separated by one saros is called a ''saros series''. It corresponds to: *6,585.321347 solar days *18.029 years *223 synodic months *241.999 draconic months *18.999 eclipse years (38 eclipse seasons) *238.992 anomalistic months The 19 eclipse years means that if there is a solar eclipse (or lunar eclipse), then after one saros a new moon will take place at the same node of the orbit of the Moon, and under these circumstances another eclipse can occur. History The earliest disco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metonic Cycles (19 Years)
The Metonic cycle or enneadecaeteris (from grc, ἐννεακαιδεκαετηρίς, from ἐννεακαίδεκα, "nineteen") is a period of almost exactly 19 years after which the lunar phases recur at the same time of the year. The recurrence is not perfect, and by precise observation the Metonic cycle defined as 235 synodic months is just 2 hours, 4 minutes and 58 seconds longer than 19 tropical years. Meton of Athens, in the 5th century BC, judged the cycle to be a whole number of days, 6,940. Using these whole numbers facilitates the construction of a lunisolar calendar. A tropical year is longer than 12 lunar months and shorter than 13 of them. The arithmetic identity 12×12 + 7×13 = 235 shows that a combination of 12 "short" years (12 months) and 7 "long" years (13 months) will be almost exactly equal to 19 solar years. Application in traditional calendars In the Babylonian and Hebrew lunisolar calendars, the years 3, 6, 8, 11, 14, 17, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
December 2029 Lunar Eclipse
A total lunar eclipse will take place on Thursday, December 20, 2029. Visibility Related lunar eclipses Lunar year series Metonic series (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 total solar eclipses of Solar Saros 142. See also *List of lunar eclipses and List of 21st-century lunar eclipses There will be 230 lunar eclipses in the 21st century (2001–2100): 87 penumbral, 58 partial and 85 total. Eclipses are listed in sets by lunar years, repeating every 12 months for each node. Ascending node eclipses are given a red background hig ... Notes External links * 2029-12 2029-12 2029 in science {{lunar-eclipse-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
