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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

What are the three outer planets?

The three outer planets in our solar system are Jupiter, Saturn, and Uranus. These planets are located beyond the asteroid belt and are known for their large size, ring systems, and gaseous compositions.

Why is it important for astronauts to train in vomit comet before gooing into space?

Astronaut candidates do "parabolic training" on a plane nicknamed the "Vomit Comet" (due to its tendency to induce motion sickness in passengers) so that they can experience weightlessness before being launched into space. If a potential astronauts is found to not be able to handle weightlessness, it's better to find that out before they actually get sent there for a long period of time. Also, weightless training gives them experience in how objects behave in zero-gee, so it's not a surprise when they get there.

What is halley comet metric size?

The nucleus is 5 Miles (8 Km) wide, and 9 Miles (15 Km) Long

How are comets colorful?

Comets are colorful due to the gases and dust particles they release as they move through space. These materials can reflect light from the Sun in different ways, creating a variety of colors. The most common colors seen in comets are blue, green, and red, depending on the composition of the gases present.

What direction does the tail of a comet point in relation to the sun?

Away from the sun
The Tail of a Comet always points Away from the Sun.

Why does a comet go around the sun?

Like any other freely moving body in the universe they exert gravity on other bodies around them and they are attracted by other heavenly bodies as well. Each body exerts a force of gravity upon other nearby bodies in space.
Comets tend to have a more elliptical path around the sun, though, than do most other major satellites of the sun.

What year will it be when you can next see Halley's comet if it takes 76 years to orbit?

The next time Halley's comet will be visible from Earth is in 2061. Halley's comet has an orbital period of about 76 years, so it will be approximately 76 years from the last time it was seen in 1986.

How often does Halley ' comet appear?

Every 76 years or so. The last known sighting was in 1986, the next in 2061 or 2062.

Are comets covered in Hydrogen clouds?

In a cometary coma, various hydrogen compounds, especially water, that are photodissociated by solar UV radiation form a gigantic hydrogen cloud with a radius of several million kilometers around the cometary nucleus. These cometary hydrogen clouds have been observed by a number of spacecraft outside the terrestrial atmosphere and in interplanetary space. For instance, the hydrogen cloud of Comet Halley was a good target for the ultraviolet photometers and spectrometers on board the IUE, Suisei, Pioneer Venus, DE-1, and sounding rockets. Hydrogen cloud activity could be used as a good measure of cometary activity, but some problems remain to be explored in the future.

What happens when a comet passes by the sun?

This is my Guess,

As it approches the sun the comets icy surface is blasted off by the suns heat and solar wind thereby forming a tail. As the comet passes the sun the tail always points away from the sun. Solar wind always coming from the direction of the sun pushes the tail away from the sun. Once into deep space again the tail dissapears as no force is acting on the surface anymore to produce the steam and gas and also particles.

When was Halley's comet spotted for the first time?

If you mean spotted by people, then however long ago people looked up and saw it, like 100,000 years ago, if you mean by Halley, then in the 1600's, if you mean by animals then millions of years ago

What are the differences between comets asteroids and meteorites?

Meteorites are chunks of space rock that fell on earth. They are pieces of rock that can be found on the Earth surface but come from outer space. Asteroids are rocks that travel thru open space, meaning they are pieces of other planets or just boulders flying around in space. If an asteroid (small one) hits earth and is then found by someone then it is an meteorite. A comet is a boulder made of mostly ice that travels thru space at hi speeds and has a defined hyperbola around a star. So Rocks form space on earth are meteorites rocks in space flying around are asteroids and ice traveling realy fast (as a boulder) around a star is a comet.

What is the bright glowing gases at the central part of a comet?

The bright glowing gases at the central part of a comet are called the coma. They are produced as the comet comes closer to the sun and the heat causes the ice and other volatile compounds on the comet's surface to sublimate, creating a cloud of gas and dust around the nucleus.

What causes the tail of a commet to form?

The tail of a comet forms when the sun's heat causes the frozen gases and dust in the comet to vaporize and stream away from the nucleus. This creates two types of tails: ion tail (gas) and dust tail (solid particles). The direction of the tails is determined by the pressure of the solar wind.

Are comets harder to see when they approach the sun?

Comets can be harder to see when they approach the Sun due to the increased brightness from sunlight scattering off dust and gas in the comet's coma and tail, as well as the proximity to the Sun's glare. However, some comets can become more visible as they get closer to the Sun and develop longer tails that reflect more sunlight.

Are comets from other galaxies?

No, they are not. They come from regions of asteroids that exist within our own solar system. Long period comets, the ones that appear once in thousands of years, probably come from the Oort Cloud, a spherical cloud of small icy asteroids believed to exist at the farthest outer reaches of the solar system. Short period comets like Halley's probably come from the Kuiper Belt, a ring of asteroids just beyone Neptune's orbit. The minor planet Pluto is the most famous Kuiper object. Not all objects in the Oort Cloud and Kuiper Belt are comets; in fact most are not.

What if a comet hit the moon?

1. We would definitely get an awesome show.

2. A handsome new crater on the moon.

3. That is really about it.

When a comet passes through the sun what happens to the ice?

When a comet passes close to the sun, the intense heat causes the ice and other volatile substances on the comet's surface to vaporize and create a glowing coma around the nucleus, forming the characteristic tail of a comet. This process is called sublimation, where the ice transitions directly from a solid to a gas without passing through a liquid phase.

Do planets stars and comets shine as a result of reflected light?

Planets and comets shine because of reflected light because they do not produce their own light. Stars are enormous balls of gas that are undergoing fusion which releases a very large amount of energy in the electromagnetic spectrum which includes visible light. So stars shine because they produce their own light and not because they reflect light.

What does a comet from the Oort cloud have to do with Iowa?

A comet from the Oort cloud has the potential to pass through the inner solar system, including close to Earth and Iowa, as it orbits the Sun. These comets can be visible from Earth as they emit gas and dust while passing through, creating bright tails and making them a spectacle for observers in places like Iowa.

What is the differences and similarities between comets asteroids and meteors?

guess wut comets have 3 parts the head [nucleus] and the tail obviously but the third is the coma that holds the gasses that make the tail meteors are and can become meteors meteorites and meteoroids meteors are passing through our atmosphere meteroids are meteors in space meteorites have hit earth asteroids are basically meteors that have reached 6 miles wide 3 of the biggest ones are considered dwarf planets ceres [eris] vesta and sedan

How fast does hale- bopp travel?

That depends on where in its orbit the comet is. Near the Sun, the comet was moving VERY fast indeed, but in 1200 years or so, a few hundred AU from the Sun, it will hardly be moving at all. And then it will begin to make its long fall back into the inner solar system.

Did a comet hit earth in the ice age?

There is no concrete evidence to suggest that a comet hit Earth during the ice age. The ice age was primarily caused by variations in Earth's orbit, tilt, and wobble, as well as changes in solar radiation.

When is the next hades comet?

It's unclear what you mean by "hades comet." If you are referring to a comet named Hades, there is no specific comet with that name. If you meant Halley's Comet, it will next be visible from Earth in 2061.