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2007-03-13 18:29:43 · 7 answers · asked by King _Kong 1 in Science & Mathematics Astronomy & Space

7 answers

There are numerous types of eclipses, KK.

First, you have the two basic types, solar and lunar.

Each has numerous sub categories.

There are three types of lunar eclipses

- total eclipse, where all of the moon is fully into the earth's dark umbra and is itself seeing a total eclipse of the sun.

- partial eclipse, where only part of the moon is in the umbra; that is, only part of the moon is seeing a total eclipse of the sun

- penumbral eclipse, where hypothetical moon people are seeing a partial eclipse of the sun, but no one on the moon is seeing a total eclipse of the sun. On earth, we see this as a graying of the lunar disc, sort of like the "man in the moon" needs a shave.

In the solar eclipse, you can have:

- total eclipse of the sun, the grandest of all

- annular eclipse, like a total eclipse except that it happens at times when the moon is near apogee, so the lunar disc is not quite large enough to fully block the sun

- antumbral eclipse, during times of the midnight sun, when the moon's shadow passes over the north (or south) pole before reaching the earth, making the earth's shadow run backward, from east to west. In Antumbral eclipses, like the May 31, 2003 eclipse in Iceland and Scotland, the central path covers large, half-moon shaped chunks of territory instead of the usual narrow strip.

- Noncentral antumbral eclipse. Also happening only in polar regions, the central part of the umbra misses the earth completely, but a bit of its edge still grazes the earth. Noncentral antumbral eclipses, like the one on April 29, 2014, do not have a central line, and the precise length of totality (or annularity, as in 2014) cannot be quoted with the sort of precision that we normally associate with eclipse predictions.

- Partial eclipses. These happen in two situations: (1) where you happen to be outside the path of totality or annularity. You see a partial eclipse while the lucky ones see the grand show; (2) in the polar regions, where the moons umbra flies above the earth's surface, but the penumbra strikes the Arctic or Antarctic regions. Sometimes, the penumbra can even penetrate into the tropics, such as with the partial eclipse this Monday (March 19th, (the 18th in Alaska)).

2007-03-13 21:31:01 · answer #1 · answered by Anne Marie 6 · 2 0

Lunar eclipse: As the moon orbits earth, it sometimes enters its shadow. In a total lunar eclipse, the moon enters the inner shadow, or the umbra, where it appears darkest. In a partial lunar eclipse, the moon is within parts of the umbra, and it is a little brighter. In a penumbral eclipse, the moon is mostly in the outer shadow, or penumbra. The moon will appear orange because of lower frequency light being refracted in Earth's atmosphere. They happen 2-3 times a year. Solar Eclipse: Occurs when the moon is between the sun and the Earth, blocking sunlight in the process. During a total eclipse, a small strip of surface, called the path of totality, is where the moon seems to completely blocks out the sun. Outside this area is a larger region where only partial regions of the sun are obscured. More common are partial eclipses, which causes no path of totality. A third type, an angular eclipse, occurs when the moon is farther from the Earth than average, and is too small to totally cover the sun. At its peak, it appears like a dark disk in a thin halo of sunlight. solar eclipses happen 2-3 times a year, but total eclipses only happen every 18 months. During a total eclipse, the sun's atmosphere, or corona, is visible.

2016-03-28 22:35:11 · answer #2 · answered by Anonymous · 0 0

As far as I know, two. There is the lunar eclipse, when the Earth passes between the sun and the moon. There is also the solar eclipse, where the moon passes between the Earth and the sun. Lunar eclipses cause the moon to look red, and don't look at a solar eclipse.

2007-03-13 18:40:14 · answer #3 · answered by andrea_bocelli_fan1 3 · 0 0

View of any space object obstructed by another object is called Eclipse. Normally when we say eclipse we refer to Solar eclipse and Lunar eclipse. There are three varieties of solar eclipse formed. They are total eclipse, partial eclipse and annular eclipse. Similarly we have two Lunar eclipses. They are partial and total eclipses.
In reality we also have some more eclipses. Eclipses of all the planets by Sun when they go behind the Sun. Similarly we have eclipses of planets by Moon. Eclipses of stars by Moon (called as occultation). They are very rare. But the rarest of rare eclipse can be planet eclipsing another planet!

2007-03-13 19:12:42 · answer #4 · answered by Wiser 2 · 1 0

There's the Solar Eclipse, the Lunar Eclipse and the Mitsubishi Eclipse.

2007-03-13 18:45:23 · answer #5 · answered by Tim C 4 · 0 3

Solar: The sun is blocked by the moon.
Lunar: The Earth blocks the moon.

For every eclipse there are the penumbra, umbra, and total zones (increasing in order of magnitude, except the moon is never total) depending on where you are on earth relative to where the moon is (its orbit isn't a perfect circle, nor is the earth's).

2007-03-13 18:38:50 · answer #6 · answered by jftz 1 · 0 0

I agree with Wiser, except for his comment about occultations being very rare. They're very common - there have been 21 visible from the UK so far this year, and that's only naked eye!

2007-03-13 22:43:35 · answer #7 · answered by Iridflare 7 · 0 0

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