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Comets
Comets are small solar system bodies that orbit around the Sun. They have a tail (trail of light) when traveling in space.
1,186 Questions
A dead comet is a comet that has lost all or most of its volatile materials, such as water and ice, through repeated orbits around the sun. Once these materials are depleted, the comet no longer displays a visible coma or tail and may be difficult to distinguish from an asteroid.
Where does a comet have the most potential energy?
A comet has the most potential energy at its farthest point from the sun (aphelion) in its elliptical orbit. At this point, the comet's gravitational potential energy is maximized due to the distance from the sun being at its greatest.
What is study of comets planets name?
The study of comets and planets is called planetary science. It involves the investigation of the formation, dynamics, and geology of celestial bodies in our solar system, including comets and planets. Scientists in this field use a variety of observational and analytical techniques to better understand these objects and their interactions.
Did the comet's tail is very dense material?
It's so diffuse that the Earth has passed through comets' tails without anybody except scientists noticing.
On the second-to-last pass of Halley's, spectroscopy revealed cyanide, a poisonous gas, in the comet's tail and there were localized panics that the Earth would be gassed to death. Of course, nothing of the sort happened because the thinness of the gas amounted to less than one molecule per person.
Why can you only see the comets when they are near the sun?
At least with the naked eye, yes. Comets can become visible around the time they pass the orbit of Mars, though on its own a comet-sized object would not be visible to the naked eye anyway.
However, it is possible to spot such objects with advanced telescopes.
Halley's Comet, if it is a typical comet, was created during or shortly after the formation of the solar system, some 4.6 billion years ago. Although it may have originally had a very elliptical (long-period) orbit, the current (short-period) orbit may have been established between 10,000 and 200,000 years ago.
It has been observed from Earth since about 240 BC (about 2250 years) and last appeared in the inner solar system in February, 1986.
What cause the tail of a comet to form?
When a comet nears the sun, and begins to out-gas, solar wind pushes the particles away. as the comet nears the sun, more & more particles are emitted, and the tail grows.
What actions promote a more scientific understanding of comets asteroids and meteors?
Actions we could take to promote a more scientific understanding of comets, asteroids, and meteors would start with education. Educate more in schools, colleges, television, and movies.
What prevents most asteroids comets and meteoroids from colliding with the earth?
Hopefully, they burn up on entering our atmosphere, due to friction with the air.
What is the best time of day to view Halleys comet in March?
You can't see Halley's Comet at any time of the year now. It was last seen from Earth in 1986 and won't be seen from Earth again until 2061. It orbits the Solar System, taking about 75 to 76 years to do so, so it can only be seen about that often from Earth.
Why comets halley is an bad omen?
It isn't. Since the times of ancient Greece comets have been believed to be omens of catastrophes. There is no evidence to substantiate such claims. Comets can cause destruction when they collide with Earth. Halley's comet's orbit does not intersect Earth's, so there is no risk of collision.
What comet takes about 76 years to orbit?
Halley's Comet has an orbital period of about 76 years. It is one of the most famous comets and can be seen from Earth approximately every 76 years.
Do the superstitions about comets in America have a scientific basis?
Something that's based on science can't be superstition. Scientific and superstition is mutually exclusive.
Will there be any comets visible tonight?
Comets tend to be visible for weeks or even months. They don't suddenly appear and then vanish again in a single night. So if there's been a comet visible recently, then it will probably be visible tonight; if there hasn't, there probably won't.
There is some point, of course, at which a comet that was not previously visible becomes visible, and at which a comet that has been visible vanishes again. But what almost never happens is that a brilliant, spectacular comet appears overnight.
There are nearly always a few comets visible through sufficiently powerful telescopes. The Related Links will take you to the Comet Chasing website, which lists all known comets currently theoretically visible to amateur astronomers (that is, you don't need a billion-dollar telescope to see them, though you may need a scope costing several thousand dollars to do so).
Who was the last BOAC comet pilot?
de Havilland Comet jet airliner. . For the 1930s racing aircraft, see de Havilland DH.88.
The British de Havilland Comet first flew in 1949 and is noted as the world's first commercial jet airliner to reach production. The Avro Ashton and the Vickers VC.1 Viking non-standard variant fitted with Rolls-Royce Nene turbojets had flown earlier but were experimental models. Early Comet models suffered from catastrophic metal fatigue, causing a string of well-publicised accidents, and the aircraft was withdrawn temporarily and redesigned. The Comet 4 series subsequently enjoyed a long and productive career of over 30 years, although sales never fully recovered. The Hawker Siddeley Nimrod, the military derivative of the Comet airliner, is still in service. In 2007, the original decades-old airframes were being rebuilt with new wings and engines to produce the Nimrod MRA 4, expected to serve with Britain's Royal Air Force until the 2020s, more than 70 years after the Comet's first flight.
Saline water is used for mining as well as other industrial purposes. The thermo-electric industry however uses most of the salt water.
Do comets asteroids and meteors have an atmosphere?
No. They do not have enough gravity to hold on to the gasses.
When Halley comet will be seen after 2061?
In 2134.
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What superstition about comets and asteroids have scientific basis in the Philippines?
None do. By definition, superstitious beliefs do not have a scientific basis.
How many comets are seen in the sky?
There have been 4,000 comets that have been discovered in the solar system as of 2010. The most famous comets that have names is Hale-Bopp, Swift-Tuttle, Hyakutake, Halley and Shoemaker -Levy 9.
How do meteorites comets and asteroids differ from each other?
a meteorite is a stone that has reaches from outer space. a comet is a moving rock across the sky and an asteroid is a big rock that revolves around the sun between mars and jupiter
