what is eclipes?

Answer 1

do you mean eclipse?

An eclipse (Greek verb: ekleipô, "to vanish", though it may derive from the prefix 'ex-', "away from", and Greek 'kaluptein', "to conceal") is an astronomical event that occurs when one celestial object moves into the shadow of another.

The term is most often used to describe either a solar eclipse, when the Moon's shadow crosses Earth's surface, or a lunar eclipse, when the Moon moves into the shadow of Earth. However, it can also refer to such events beyond the Earth-Moon system: for example, a planet moving into the shadow cast by one of its moons, a moon passing into the shadow cast by its parent planet, or a moon passing into the shadow of another moon. A solar eclipse is actually a misnomer; the phenomenon is actually an occultation.

Answer 2

An "eclipse" occurs when Earth, the moon, and the sun reach a certain alignment. For a solar eclipse, the moon is directly between the sun and Earth. For a lunar eclipse, the Moon has moved into Earth's shadow on the other side from the sun.

Answer 3

Eclipse:
1.The partial or complete obscuring, relative to a designated observer, of one celestial body by another.
2.The period of time during which such an obscuration occurs.
A temporary or permanent dimming or cutting off of light.

3A fall into obscurity or disuse; a decline: “A composer... often goes into eclipse after his death and never regains popularity” (Time).
4A disgraceful or humiliating end; a downfall: Revelations of wrongdoing helped bring about the eclipse of the governor's career.

5.To cause an eclipse of.
6.To obscure; darken.

7.To obscure or diminish in importance, fame, or reputation.
8.To surpass; outshine: an outstanding performance that eclipsed the previous record.

Solar Eclipse:
A solar eclipse occurs when the Sun, Moon and Earth are on a single line with the Moon in the middle. Seen from the Earth, the Moon is in front of the Sun and thus part or all of the light of the Sun is eclipsed by the Moon. Thus it may seem that a piece has been taken out of the Sun, or that it has suddenly disappeared. The Sun's corona can only be seen during a solar eclipse.
There are four types of solar eclipses:

A partial solar eclipse: Only part of the Sun and the Moon overlap
A total solar eclipse: All of the Sun is hidden by the Moon
A ring-formed or annular eclipse: A ring of the Sun can still be seen around the Moon (caused by the Moon's umbra failing to reach the Earth's surface, which can happen if the Moon is near apogee). This is similar to a penumbral eclipse.
A hybrid eclipse: The curvature of Earth's surface causes a single solar eclipse to be observed as annular from some locations but total from other locations. A total eclipse is seen from places on the Earth's surface that lie along the path of the eclipse and are physically closer to the Moon, and so intersect the Moon's umbra; other locations, further from the Moon, fall in the Moon's antumbra and the eclipse is annular.
Solar eclipses can be more logically described as occultations. They can only happen during the new moon lunar phase.

Lunar Eclipse:
Lunar eclipse
An eclipse occurs whenever the Sun, Earth and Moon line up exactly. If this occurrence is at the time of a full moon where the Moon passes through the Earth's shadow, it is called a lunar eclipse. The type and length of a lunar eclipse depends upon the Moon's location relative to its orbital node.
Image:Lunareclipsediagram1.gif

Types of lunar eclipses
A penumbral eclipse occurs when the Moon only passes through the Earth's penumbra, the outer portion of the Earth's shadow. The penumbra does not cause a noticeable darkening of the Moon's surface.
A special type of penumbral eclipse is a total penumbral eclipse. At a total penumbral eclipse the moon is completely in the penumbra of the earth, but not in the umbra. At a total penumbral eclipse the parts of the moon closest to the umbra are a bit darker than the rest of the moon. Total penumbral eclipses are a rare type of lunar eclipses.

A total lunar eclipse occurs when the Moon travels completely into the Earth's umbra, the dark inner portion of the shadow. The Moon's speed through the shadow is about one kilometer per second, and the total eclipse may last up to 102 minutes. However, the time between the Moon's first contact with the umbra and last contact, when it has completely exited the umbra, may be several hours. If only part of the Moon enters the umbra, it is called a partial lunar eclipse.

The Moon doesn't completely disappear as it passes through the umbra because of the refraction of sunlight by the Earth's atmosphere. The amount of refracted light depends on the amount of clouds or dust in the atmosphere blocking the light. This causes the Moon to glow with a coppery-red hue that varies from one eclipse to the next. The following scale was devised by Andr頄anjon for rating the overall darkness of lunar eclipses:

0. Very dark eclipse; Moon almost invisible, especially in midtonality
1. Dark eclipse; gray or brownish coloration; details distinguishable only with difficulty
2. Deep red or rust-colored eclipse, with a very dark central part in the umbra and the outer rim of the umbra relatively bright
3. Brick-red eclipse, usually with a bright or yellow rim to the umbra
4. Very bright copper-red or orange eclipse, with a bluish, very bright umbral rim
Because the Moon's orbit around the Earth is inclined 5° with respect to the orbit of the Earth around the Sun, lunar eclipses do not occur at every full moon. For an eclipse to occur, the Moon must be near its orbital node—the intersection of the orbital planes. Passing through the shadow at or very close to the node results in a total or partial eclipse.

The relative distance of the Moon from the Earth at the time of the eclipse can affect the eclipse's intensity. Specifically, a totally-eclipsed Moon being concomitantly at or near apogee will lengthen the duration of totality for two reasons: First, the Moon will appear to move more slowly across the umbra, and second, the Moon will appear smaller as seen from Earth and therefore remain inside the umbra longer.Every year there are at least two lunar eclipses. If you know the date and time of an eclipse, you can predict the occurrence of other eclipses using eclipse cycles. Unlike a solar eclipse, which can only be viewed in a certain relatively small area of the world, a lunar eclipse may be viewed from anywhere on the night side of the Earth. If you were on the Moon's surface during a lunar eclipse you would witness a solar eclipse, with the Earth passing in front of the Sun.

Answer 4

Eclipse means when something is blocking the light when its trying to reach us.There are two types of eclipses that we can see by naked eye The lunar and the solar. Lunar eclipses happen 1 in each month but solar eclipses hapen once in 100 years!

Answer 5

A car,

Oh right sorry, there are 2 types of eclipse's.

LUNAR is when the Moon comes between the Sun and the earth.

SOLAR is when Earth comes between the Sun and the moon.

Answer 6

An eclipse (Greek verb: ekleipô, "to vanish", though it may derive from the prefix 'ex-', "away from", and Greek 'kaluptein', "to conceal") is an astronomical event that occurs when one celestial object moves into the shadow of another.

The term is most often used to describe either a solar eclipse, when the Moon's shadow crosses Earth's surface, or a lunar eclipse, when the Moon moves into the shadow of Earth. However, it can also refer to such events beyond the Earth-Moon system: for example, a planet moving into the shadow cast by one of its moons, a moon passing into the shadow cast by its parent planet, or a moon passing into the shadow of another moon. A solar eclipse is actually a misnomer; the phenomenon is actually an occultation.

Eclipses in the Earth-Moon system
An eclipse involving the Sun, Earth and Moon can only occur when they are in a line. Because the plane of the orbit of the Moon is tilted with respect to the plane of the orbit of the Earth (the ecliptic), eclipses occur only when the three bodies are near the intersection (the node) of these planes. The Sun passes either node once a year, and eclipses occur in a period of about two draconic months around these times. There can be from four to seven eclipses in a calendar year. They repeat according to eclipse cycles.

Types of eclipse

1999 Total solar eclipse seen from the Mir space stationThe most dramatic eclipses visible from Earth are:

Lunar eclipses - the Earth obscures the Sun, from the Moon's point of view. The Moon moves through the shadow cast by the Earth. This can only happen at full moon.
Solar eclipses - the Moon occults the Sun, from the Earth's point of view. The Moon casts a shadow that touches the surface of the Earth. This can only happen at new moon.
Eclipses can be divided into different types:

Total eclipses, in which the light source is totally blocked off by the eclipsing body. For total solar eclipses, the viewer is in the umbra part of the Moon's shadow. The total phase of a total eclipse can have a duration of up to 7 min 31 s.
Partial eclipses, in which only part of the luminary is covered (solar eclipses), or when only part of a body is eclipsed by the shadow (lunar eclipses). For solar eclipses, the viewer is in the penumbra part of the Moon's shadow.
Annular eclipse, which are a total eclipse of luminary where a thin ring of light is visible around the intervening object. For solar eclipses, the viewer is in the antumbra part of the Moon's shadow.
Hybrid solar eclipses, which consists of three phases: the eclipse starts as an annular one, then turns into a total and by the end it returns to the annular phase. The total phase of a hybrid eclipse is typically very short. Maximum possible duration is 1 min 49 s. It is pure coincidence that the Moon and Sun have nearly equal apparent sizes, making hybrid solar eclipses possible.
The ratio between the apparent sizes of the eclipsing body and that of the luminary is called the magnitude of the eclipse. For solar eclipses, the ratio varies around 1, being sometimes more than 1, sometimes less. For lunar eclipses, the magnitude is much larger than 1; they never appear annular (viewed from the Moon).

Eclipse phases
These were used in occult ceremonies.

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General phases of a solar eclipse
The general eclipse begins when the Moon's penumbra cone starts to sweep across the Earth's disc.
The total or annular eclipse begins when the Moon's umbra starts to sweep across the Earth's disc.
The centrality begins when the axis of the Moon's shadow cone starts to sweep across the Earth's disc.
The eclipse's maximum occurs when the terrestrial surface within the umbra reaches its largest area.
The centrality ends when the axis of the Moon's shadow finishes its sweep across the Earth's disc.
The total or annular eclipse ends when the Moon's shadow finishes its sweep across the Earth's disc.
The general eclipse ends when the Moon's penumbra finishes its sweep across the Earth's disc.

The French 1999 eclipse[edit]
Local phases of a solar eclipse
First contact (also called first exterior contact) is the instant when the Moon's disc starts to cover the Sun's.
Second contact (also called first interior contact) is the instant when the Moon's disc is entirely surrounded by the Sun's (for an annular eclipse) or the instant when the Sun's disc disappears completely behind the Moon's (for a total eclipse).
Third contact (also called second interior contact) is the instant when the Moon's disc starts to come out of the Sun's (for an annular eclipse) or the instant when the Sun's disc reappears from behind the Moon's (for a total eclipse).
Lastly, fourth contact (also called second exterior contact) is the instant when the Moon's disc clears the Sun's.
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Phases of a lunar eclipse
There are three types of lunar eclipses: penumbral, when the Moon crosses only the Earth's penumbra; partial, when the Moon crosses partially into the Earth's umbra; and total, when the Moon crosses entirely within the Earth's umbra.


The progression of a lunar eclipseFirst contact (also called first exterior contact) is the instant when the Moon starts to enter into the Earth's umbra.
Second contact (also called first interior contact) is the instant when the Moon enters completely into the Earth's umbra. This is the beginning of totality.
The maximum of the eclipse occurs when the angular distance between the centre of the Moon's disc and the centre of the shadow cone is at its smallest value.
Third contact (also called second interior contact) is the instant when the Moon starts to come out of the Earth's umbra. This is the end of totality.
Lastly, fourth contact (also called second exterior contact) is the instant when the Moon clears the Earth's umbra completely.
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The eclipse in mythology

Han Dynasty CarvingBefore modern astronomy arose there were long-standing explanations for eclipses in many cultures. These would typically involve conflicts between mythic forces. For example, in Hindu mythology, the two demons Rahuand Ketu were believed to be the cause of eclipses.However Aryabhata gave an accurate explanation of the eclipse in his scientific treatise Aryabhatiya dated 499 AD .

Similarly in China, at the Imperial observatory in Beijing, is a carved stone with the following explanation:

"This carved stone chart explained the cause of solar eclipses. The center of the golden bird (the symbol of the sun) was covered by the toad (the symbol of the moon). The people of the Han Dynasty called the phenomenon a good combination of the sun and the moon."
In this explanation we see a recognition of the celestial realities and a cheerful outlook regarding the event. In other cultures an eclipse could be both a surprising and a terrifying event.

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Eclipses elsewhere in the solar system

A picture of Jupiter and its moon Io taken by Hubble. The black spot is Io's shadow.Eclipses are impossible on Mercury and Venus, which have no moons.

On Mars, only partial eclipses are possible, because neither of its moons is large enough to cover the Sun's disc. Martian eclipses have been photographed from both the surface of Mars and from orbit. See Transit of Phobos from Mars and Shadow of Phobos on Mars.

The gas giants, which have many moons, frequently display eclipses. The most striking involve Jupiter, which has four large moons and a low axial tilt, making eclipses more frequent. It is common to see the larger moons casting circular shadows upon Jupiter's cloudtops.

Pluto, with its large moon Charon, is also the site of many eclipses.

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See also
Eclipse cycle
Eclipsing binary
Pharaoh (historical novel by Bolesław Prus, incorporating a solar-eclipse scene likely inspired by Christopher Columbus' use of a lunar-eclipse prediction)
Saros cycle
List of solar eclipses
Solar eclipse on 29 March 2006
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External links
The following web page lists many of the cycles over which solar and lunar eclipses repeat, including the Saros and Inex:

http://www.phys.uu.nl/~vgent/calendar/eclipsecycles.htm
Search 5,000 years of eclipse data by type, magnitude, Saros number, or simply by year on the following site:

http://www.hermit.org/Eclipse/when_search.shtml (loads slowly)
Dr. Fred Espenak's eclipse site:

http://sunearth.gsfc.nasa.gov/eclipse/eclipse.html
International Astronomical Union's Working Group on Solar Eclipses

http://www.eclipses.info
Stunning Solar and Lunar Eclipse Sequences and Photos:

http://www.perseus.gr/Astro-Eclipses.htm
Interactive eclipse maps site:

http://xjubier.free.fr/en/site_pages/SolarEclipsesGoogleMaps.html
Prof. Druckmüller's eclipse photography site:

http://www.zam.fme.vutbr.cz/~druck/Eclipse/
Windows software for finding eclipse dates and times:

http://www.hermetic.ch/lcef/lcef.htm
Williams College eclipse collection of images

http://www.williams.edu/astronomy/eclipse
Retrieved from "http://en.wikipedia.org/wiki/Eclipse"

Answer 7

Ask your gynecologist.

Answer 8

do you mean 'eclipse'?