Comets

Some scientists believe that dinosaurs became extinct when a comet crashed into Earth. This catastrophic event led to widespread environmental changes, including extreme climate conditions that likely contributed to the mass extinction of dinosaurs and many other species.

Halley's Comet is a well-known comet that has been recorded throughout history, with the earliest known sighting dating back to 240 BC. Its periodic appearance every 75-76 years has been documented by civilizations such as the ancient Chinese, Greeks, and Babylonians.

Comets are made up of three distinctive parts: the nucleus, the coma, and the tail. If a comet passes close to the sun enough times, it loses nearly all of the frozen ice that trail after in its tail and surrounding it in the coma.

It helps us to know about the solar system's early history.

That's because we think comets are leftovers from the formation of the planets, etc.

They are very old, primitive bodies, like the asteroids.

Yes, when fragments of comet Shoemaker-Levy 9 hit Jupiter in 1994, they left visible scars in the planet's atmosphere that lasted for weeks. These impacts provided valuable insights into Jupiter's atmosphere and the dynamics of collision events in our solar system.

No. Comet brightness depends on the actual brightness, but also on the distance from the Sun. In 1986, Halley's Comet was not very bright, because it was far from Earth. The previous appearance in 1910 was distinctly brighter, but still wasn't even the brightest comet of the year; the "Great Daylight Comet of 1910" was visible during the day!

Comet Temple-Tuttle has an eccentricity of approximately 0.96. This means its orbit is highly elongated, with the comet coming close to the sun at perihelion and traveling far out into the solar system at aphelion.

Most comets move much faster than the Earth's velocity around the Sun, which is about eighteen miles per second. Halley's comet makes a wide loop every seventy-six years. Its farthest point from the Sun is beyond Neptune. When it is that far out, it parades through space very slowly; an airplane could probably keep up with it. As the comet moves in, it picks up speed. By the time it passes the Earth, it is sprinting along at close to forty miles per second.

Same as any other comet: away from the Sun.

Same as any other comet: away from the Sun.

Same as any other comet: away from the Sun.

Same as any other comet: away from the Sun.

The piece of a comet that trails behind it is called a tail. Cometary tails are composed of dust and ionized gases that become illuminated by the Sun, creating the characteristic bright streak visible from Earth.

No one knows. Comets are hard to see coming. They aren't visible until they come in past the orbits of the outer planets. We wouldn't get a lot of warning time, not that we could do very much to get out of the way or modify the orbit of the comet so it would miss us.

First of all, its not the Christmas Star. You arereferring to the star that appeared when Jesus was born. The reason its not the Christmas Star is because Jesus WAS NOT born on Christmas. They have rolled back the stars to the year He was born and shown that the constellation Ares (somehow the constellation of the Jews) was overhead and the star was inside that constellation (not one of the stars making up the constellation, just a bright light within) and that is what lead the three men to the city. By simple reasoning you can figure out that Jesus was not born in the winter because it says as plain as day, the shepherds were tending their flocks. Shepherds don't tend flocks in the winter. The reason that Christmas is on the 25th of December is because that was the Pagan holiday of the son. So in order to help convert more Pagans to Christianity they made a major holiday on the same day since everyone was used to celebrating on that day anyways. Any church official who says that Jesus was born on Christmas is either a retard or he is trying to sell you something because the book that they believe in has proof that is didn't happen that way. By rolling back the stars to the year He was born, they have found that He was born in April. I believe it was around the 14th or 17th.

About 6 or 7, with Hailies conet appering in 2061

Comet West was remarkable in its brightness and tail formation, providing astronomers with valuable data to study the composition and behavior of comets. It helped to confirm that comets are made of ice and dust, and its disintegration provided insights into the dynamics of comets in the solar system. Overall, Comet West contributed to advancing our understanding of comets' role in the formation and evolution of the solar system.

That period of time is called a " sidereal day ". That's not the period of time for your clock
or wristwatch to make a complete rotation.

The earth's rotation is 23hours 56minutes and roughly 4seconds.

A planet or comet's orbit that is farthest from the sun is called the aphelion. This is the point where they are at their greatest distance from the sun in their elliptical orbit.

The dust particles in the coma of comet 1P/Halley were made of diverse materials including silicates, carbon, and metals. These particles traveled at high speeds, impacting the probes with enough force to cause damage to their instruments and outer surfaces. The abrasive nature of these particles also caused wear and tear on the probe's components.

The Coma is the fuzzy outer layer of a comet.

Generally asteroids move more slowly because they are in relatively stable orbits. Meteors can come in at any velocity, depending on their source. Comets travel very rapidly when close to the Sun, but come almost to a standstill at the outermost point in their orbits.

Meteors from "meteor showers" generally come from the decay of comets, and are traveling at cometary speeds. Recent radar measurements of recent meteor showers tracked the incoming meteors at 130,000 miles per hour.

Halley's Comet was not founded by a person, but rather named after the astronomer Edmond Halley, who calculated its orbit and predicted its return in 1758.

Short-period comets originate from the Kuiper Belt, a region beyond Neptune filled with icy debris, or from the scattered disk, which is a distant region beyond the Kuiper Belt. These comets have orbits that last less than 200 years and are affected by the gravity of the outer planets.

The Oort Cloud is a distant region in the solar system composed of icy bodies, including frozen comets. These comets have highly eccentric orbits that occasionally bring them closer to the Sun, resulting in them becoming active and displaying a coma and tail as they release gas and dust.

Comets in the Kuiper belt are believed to have originated in the outer regions of the solar system, beyond the giant planets like Neptune. Some scientists think they may have formed close to their current location, while others suggest they migrated there from even more distant regions.

No. A comets tail is created when water evaporates off the comet, this can only happen when the comet is near enough to the sun for water to evaporate. The tail of a comet does not follow behind it but always points away from the sun because of the solar wind.

The statement is utterly and completely false,

and without a redeeming shred of truth.