Comets

Halleyâ??s Comet is a periodic comet and returns to earth at roughly every 75 years as predicted by Edmond Halley. Who happened to notice the pattern but was unable to see its return in 1758. In 1910 the comet was especially fantastic, having passed Earth by at about 13.9 million miles, and was photographed for the first time. The return of the comet in 1986 was met by a number of nationâ??s satellites. This fleet of spaceships is sometimes dubbed the "Halley Armada." But was only a spec on the horizon for most of the Earths telescopes as it passed on the other side of the sun opposite Earth at the time.

Halley's Comet is a famous periodic comet that is visible from Earth every 75-76 years. It is named after the astronomer Edmond Halley who successfully predicted its return. The last time Halley's Comet was visible from Earth was in 1986, and it will next be visible in 2061.

The nucleus is made up of a special dust called fluffy. It is called fluffy because this dust could be as lightweight and full of holes like a sponge. The holes in the dust are filled with ices like water, carbon dioxide (dry ice), and carbon monoxide.

A comets ion or gas tail always extends away from the sun, as it is effected more by the solar wind from the sun. The dust tail follows the orbit of the comet, streaming behind the comet - where the comet has been.

== == Its last appearance was in 1986, and it is due back in 2061. I had the pleasure of seeing it in 1986; it wasn't an extremely dramatic show that time around, but beautiful nonetheless. See link for more information.

Comets can be formed anywhere in space. They are mainly composed of ice and dust, which can be acquired from anywhere in space i.e pieces of chipped planets or random space particle.

Hope this was helpful x]

A comet can go very fast because it is often heading toward the sun or looping around the sun. It is believed that 366 miles per second is the fastest a comet's movement has ever been measured.

i think it comes past the earth every 76 years.

One famous superstition related to comets is that they are omens of impending disaster or significant events. Throughout history, people have associated comets with disasters such as wars, plagues, or the deaths of prominent figures. This belief has persisted in various cultures, despite comets being scientifically understood as icy bodies orbiting the Sun.

Asteroids are generally bigger than comets, with sizes ranging from a few meters to hundreds of kilometers in diameter. Comets are typically smaller and are made up of rock, dust, and ice. However, there can be exceptions, and sizes can vary among individual asteroids and comets.

Most comets travel around the Sun in elliptical paths. The time it takes a comet to make a complete orbit is called its period. Some comets have short periods of less than seven years. Others travel in such huge orbits that they pass near the Sun only once in thousands or even millions of years. As of 1995, 878 comets have been catalogued and their orbits at least roughly calculated. Of these 184 are periodic comets (orbital periods less than 200 years); some of the remainder are no doubt periodic as well, but their orbits have not been determined with sufficient accuracy to tell for sure. No comets seem to have approached the Sun from beyond the limits of the solar system. Therefore, all comets seen by astronomers are considered part of the solar system.

Halley's Comet varies in size as it travels through space. Its nucleus is estimated to be about 9 miles (15 kilometers) long and 5 miles (8 kilometers) wide. When the comet is close to the sun, it can develop a coma (a cloud of gas and dust) and a tail that can extend for millions of miles.

Comet Encke is a periodic comet with the shortest orbit of any known comet in the solar system at 3.30 years. It was first discovered on January 17, 1786 by Pierre F. A. Mechain. It was named after Johann Franz Encke, who was the first person to calculate its orbit.

A comet's tail can vary in length, but it can extend from tens of thousands to millions of kilometers. The tail is mainly composed of dust and gas particles that are released as the comet approaches the Sun and interaction with solar wind pushes the material away from the comet's nucleus.

Some famous comets and their names include Halley's Comet, Comet Hale-Bopp, Comet Shoemaker-Levy 9, and Comet 67P/Churyumov-Gerasimenko. Each comet is named based on the astronomers who discovered them or based on a specific naming convention.

Meteors don't have names; they are transient, burning up in the atmosphere. They are gone in a second or two.

If it survives, some meteorites are given names, usually related to the location of the fall.

Comets are made up of ice, rock, and dust and originate from the outer solar system. They have a tail when approaching the Sun due to the melting of ice. Meteors, on the other hand, are small rocky or metallic particles that burn up upon entering the Earth's atmosphere, creating a streak of light commonly known as a shooting star.

Yes, male comet goldfish can be kept with female comet goldfish. However, be mindful of the tank size and ensure there is enough space and hiding spots to reduce aggression during breeding season. It's also essential to monitor the water parameters and maintain good water quality for the health of the fish.

First flight: 29 July 1949. Entered service: 2 May 1952. Go here: http://en.wikipedia.org/wiki/De_Havilland_Comet

Comet nuclei are composed of a mixture of rock, dust, ice, and frozen gases such as water, carbon dioxide, methane, and ammonia. These materials are thought to be remnants from the early days of the solar system, providing important clues about its formation and evolution.

From: http://www.windows.ucar.edu/tour/link=/comets/tail.html&edu=high :

One tail is due to the comet's dust particles, the other is due to ionized gas from the comet coma.

Dust particles form the first tail. The only force which affects these small particles in space is corpuscular radiation from the Sun itself. This radiation pushes the tiny dust particles in the direction from which they came, the way wind can blow rain droplets at an angle. Cometary dust particles can be thought of as billowing up from the comet's surface. Thus, this comet tail generally points back along the comet trajectory.

Ions (electrically charged particles), which first come from the nucleus as (neutral) gaseous particles, are swept into the second comet tail by interaction with the Interplanetary Magnetic Field (IMF). The IMF, or magnetic field of the sun, which is present everywhere in interplanetary space, sweeps past the comet nucleus and carries the ions with it to form the tail. Because of this special interaction with the IMF, this tail always points directly away from the Sun"

The center of a comet is called the nucleus. It is made up of ice, rock, dust, and organic compounds frozen together.

The Oort cloud is thought to have formed from leftover material from the early solar system. Gravitational interactions with nearby stars and the giant planets may have scattered these icy bodies to the distant reaches of the solar system, forming the spherical Oort cloud.

Comets typically appear as bright, icy bodies with a glowing coma (dust and gas) surrounding a nucleus. They can be seen as a fuzzy or blurry object in the night sky with a long tail that points away from the Sun. The tail forms as ice and dust vaporize and get blown by the solar wind.