Comets

Comet tails are made of parts of the comet, such as ice and water vapor, pieces of rock and dust, and whatever else the comet itself happens to be made of that have broken or evaporated off due to solar wind. This is why the comet trail always trails in a direction that is directly opposite from the sun and not necessarily directly behind the path of the comet itself. A comet can also have two types of tails. A dust tail, and ion tail. The ion tail is made of electrically charged particles...ions. The center of a comet is called a nucleus.

Answer:- Briela's comet appears after 6.6 years. Its correct name is biela's comet. Di vico is not comet. Halley appears after 76 years. Donati is a non period comet. It appeared once only in 1858. I think correct answer is Biela's comet. If there is any other opinion mail me.

A period lasting 5 days is considered to be of average duration. Typically, periods can last anywhere from 3-7 days and can vary in length from person to person. If you consistently have periods lasting less than 3 days or longer than 7 days, it may be worth discussing with a healthcare provider.

They are often referred to as 'dirty ice balls.' So I would say that they are mostly made of water and contain only a little bit of dirt.

The Earth has been hit by rocks from space many times. We are certain of a fair number of impact craters around the world, but which ones were meteors and which were comets? And does it really make a difference?

There have been a number of planetary extinction events, things that killed 75% or more of all life on Earth. Until 30 years ago, no one believed that a large meteor, asteroid or comet could have caused them. Then Luis Alvarez made a persuasive case that an impact near the Yucatan peninsula in Mexico had caused such global devastation 65 million years ago that it killed off, among others, the dinosaurs.

252 million years ago, a similar but bigger impact at the end of the Permian era probably killed off 95% of all life on earth.

And just this week (January 2, 2009), scientists have announced that an impact in northern Canada 12,900 years ago may have killed off the mammoths, mastodons, and saber-tooth tigers - and all the humans in North America - by melting a Canadian glacier and flooding the Mississippi River with icy water that then disrupted the Gulf Stream and caused the "Younger Dryas" mini-ice age. Beyond those, there is the Meteor Crater in Arizona, impact craters in France, and countless more. Install Google Earth, and start looking for circular hills; you'll find impact craters all over.

A comet's 3 main parts are nucleus, coma and tail. The nucleus is the heart of a comet. A coma is the gas and dust that forms a cloud around the nucleus. The tail is a blazing streamer from the coma, it is million of miles long

An asteroid is larger than a meteoroid, though the actual size requirement is not defined.

It could be from a combination of factors, which is why this tendancy seems to be different for different people. The main reason might be that one of the first things to get digested are simple sugars and since sugar is the body's preferred source of energy, it burns it up as it enters the blood stream through the stomach lining and that's what makes a person warm.

Another reason is that the digestive process uses lots of energy, and that creates a lot of heat. For the same reason our bodies get warm when we exercise, we also get warm when we digest.

Other reasons would have to include the parasympathetic division of the autonomic nervous system. This system is designed to make us more relaxed to allow our bodies to divert more blood to our digestive system, and that in turn would also help warm us up.

Halley's Comet is a periodic comet that is visible from Earth roughly every 76 years. Its last appearance was in 1986, so the next expected appearance will be around the year 2061. However, its visibility also depends on factors such as its distance from Earth and the conditions of the night sky.

Here are some simple tips on how to use BitComet.

Switch on the computer and connect to the internet.

On your browser, open BitComet Website.

Click on the introduction screen to the left of the screen.

On the left of the page, click the download link.

Choose the download mirror.

Open Installation

Approve all security clearances when installation is being done

Next Restart computer after installation.

Open BitComet Application

Click the File Menu

Click the Open Torrent Button

Select any BitTorrent Files you have saved

Click Open

Choose where you would like your download to go.

Click on the Download Now Button

and finally when the button turns red, close the program.

Hope this helps.

It will eventually dissipate. Comets lose some of their mass every time they get near the sun. The more volatile components evaporate more quickly than the rocks, so over time the rate of outgassing goes down and eventually all you have is a bunch of dust and rocks flying in formation. The reason there are still comets around is that comets only rarely come near the sun. Mostly they orbit on the most remote fringes of the solar system, so cold that any molecule they happen to run into sticks to them. They don't have tails out there, they are just big dirty ice balls. Comets can only come near enough the sun to create a tail if their orbits get disturbed in a profound way, something that doesn't happen often. Once a comet starts orbiting near the sun it won't last long, at least on a cosmic time scale.

Your husband isn't narcissistic, but just a plain old jerk! You didn't explain if this was his daughter or yours from a former relationship or marriage and you didn't explain what type of sexual comments he is making, so please explain further if you should choose to answer my post. I'll be watching for it on my "watchlist." A little more info is needed here. Hope you repost. If you witnessed the inappropriate comments, then you definitely know what you have to do--leave! Anything else, you need to talk to your child--or take them to a third party--to see what happened. Your responsibility is to the care and the safety of your child, so however it is with the husband, you will have to leave if it is true. This really is not something you can warn the person about and hope they don't do it again--or that the sexual comments escalate into physical contact.

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DSO EXPLOIT is a vulnerability related to an outdated ActiveX control in Internet Explorer. To permanently remove it, you can try updating to the latest version of Internet Explorer or switch to a different web browser like Chrome or Firefox that is not affected by this exploit. It's also a good idea to keep your operating system and all software up to date with the latest security patches.

Aphelion

Comet Hyakutake, named after Japanese astronomer Yuji Hyakutake who discovered it in 1996, did not have specific folklore associated with it as it was a recently discovered astronomical object. However, comets have historically been viewed as omens or harbingers of change in various cultures around the world.

"Comets are cosmic snowballs of frozen gases, rock, and dust that orbit the Sun. When frozen, they are the size of a small town. When a comet's orbit brings it close to the Sun, it heats up and spews dust and gases into a giant glowing head larger than most planets."

-NASA

Comet tails always stream away from the sun due to the solar wind, which is a stream of charged particles emitted by the sun. The solar wind pushes against the gas and dust particles in the comet's coma (a cloud of gas and dust surrounding the nucleus) and causes them to form a tail that points away from the sun.

There is no widely recognized public figure or well-known individual named Halley Barre in mainstream media or popular culture. It's possible that Halley Barre may be a private individual or a lesser-known public figure.

The tail. The tail is composed of gas and dust released from the comet nucleus when it approaches the Sun. Comet tails can be incredibly long, some as long as 150 million kilometers.

As the comet recedes out into the Solar System away from the warmth of the Sun, it stops shedding dust and gas and the comet loses its tail.

As a comet approaches the Sun, the heat causes ice and other volatile substances within the comet to vaporize. This forms a glowing coma (a cloud of gas and dust) around the solid nucleus of the comet. The solar wind then pushes this gas and dust away from the Sun, forming a tail that can stretch for millions of kilometers in the opposite direction of the Sun.

As comets approach the sun, they undergo several changes. The increase in temperature causes the icy nucleus of the comet to vaporize, creating a glowing coma around it. This coma is often accompanied by a tail pointing away from the sun due to the solar wind's effects on the released gas and dust. Additionally, the intense heat can cause the comet to fragment or even disintegrate completely.

Did a comet or asteroid or large meteor hit the Earth about 12900 years ago? It seems to be true; there were species extinctions about that time that seem to be related to an impact event. There is a special class of rocks called "tektites", which are only found near the sites of nuclear explosions or meteor impacts. The dust of tektites has been found all over North America, in the same layers of rocks that have the dead animals like the wooly mammoth and saber-toothed tigers.

There was also a mini-ice age about that time, called the "Younger Dryas". Some scientists believe (and this is still a fairly controversial theory!) that a small asteroid or a comet struck northern Canada and may have melted enough glacier ice to cause a cold water flood into the Atlantic, which could have triggered the Younger Dryas. (Other scientists looking at the same evidence aren't so sure - or rather, are QUITE sure that it did NOT happen that way.)

A "HUGE" comet? Not so much. A really big comet or asteroid would have caused much MORE damage. The asteroid that was believed to have killed off the dinosaurs was only about 6 miles in diameter, and killed off 75% of all life on Earth. The one that hit Canada must have been much smaller. Some scientists believe that there may have been several smaller objects striking many places across North America.

No, Comet goldfish do not require heated water. They are a cold-water species that can tolerate a wide range of temperatures, typically between 65-75°F (18-24°C). It is important, however, to provide them with a stable and consistent water temperature to ensure their well-being.

No, I've yet to find a single comet with a circular orbit. All I've researched have elliptical orbits, and the apogee of that orbit, the point furthest from the Sun, takes them to the Oort Cloud or beyond.

No, Halley's comet was not visible in 1834. Halley's comet has an orbital period of about 76 years, so it was last visible from Earth in 1986 and will next be visible in 2061.