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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
Smaller pieces of rock from old broken-up comets become?
Small pieces of rock from old broken-up comets become meteoroids when they enter Earth's atmosphere. Depending on their size, they can create meteors (shooting stars) as they burn up or meteorites if they survive the journey to the surface of the Earth.
Are any comet strikes a source of the ocean water?
Although comets contain water in the form of ice, scientists do not consider them a significant source of Earth's ocean water. Instead, the majority of Earth's water is thought to have originated from within the planet during its formation and through volcanic outgassing over time. Comets may have played a role in enriching Earth's water with isotopic compositions different from those found in the planet's interior.
When is a comet next predicted on earth?
comets can be found at any time in the west two hours after sun set when the sky is dark or in the east a few hours befor sun rise comets can be found at any time it takes a lot of dedecation and time if you know the sky well ul know when uv found a comet you could be lucky one nite
Who were the original members of Bill Haley and the Comets?
When the Saddlemen changed their name to The Comets in the fall of 1952, its members were: Marshall Lytle (bass), Johnny Grande (piano) and Billy Williamson (steel guitar), as well as Haley. Drummer Charlie Higler joined soon after. When the group recorded Rock Around the Clock in April 1954, its members were Lytle, Grande, Williamson, Dick Richards (drums) and Joey Ambrose (sax). The group did not actually have a full-time guitarist until 1955. Danny Cedrone, who played the Rock Around the Clock guitar solo, and Billy Gussak, who played drums on the record instead of Richards, were session musicians. Lytle, Grande, Richards and Ambrose reunited as the Original Comets in the late 1980s and continued to perform into the late 2000s; Grande died in 2006, and Lytle left the Comets in 2009. Richards and Ambrose continue to perform as the Original Comets (with new members, of course) as of summer 2010. Two other bands claim to be "the originals" but none can claim members dating back earlier than 1959.
Meteoroids are rocky or metallic fragments from space that come from comets or asteroids. They can be leftovers from the formation of the solar system and are usually small in size, ranging from dust particles to boulder-sized objects. Many meteoroids enter Earth's atmosphere as meteors and may land on the surface as meteorites.
Is there any comet that has ever been observed to have a hyperbolic trajectory?
Yes, comet C/2017 U1 (PANSTARRS) was the first known interstellar object to pass through our solar system, and it had a hyperbolic trajectory. This means that it was moving fast enough to escape the gravitational pull of the Sun and was not bound to return.
= Comet Hunting = by William A. Bradfield
Some new comets have been discovered accidently by amateur astronomers whilst making variable star or deep sky observations. Surprisingly a few bright comets displaying tails have been discovered with the naked eye by observant members of the general public (including for example farmers and in-flight airline pilots). However, the vast majority of visually discovered comets are found by comet hunters carrying out systematic telescope searches of selected areas of the night sky. As the motion of all comets is directed around the Sun and because these bodies brighten as they move towards the Sun, there is a greater potential for the visual discovery of a new comet in the skies towards the Sun rather than away from the Sun's direction. This means that searches should be concentrated on the western sky after evening twilight and on the eastern sky before morning twilight. From the astronomical viewpoint there is no particular time during the year which favours the discovery of new comets. A search can be undertaken at any time providing there is no bright Moon above the horizon. Searches of the prime sky areas should be made twice a month, the first being early in the Moon free period and the second towards the end of that period. The first search is often rewarding because it could reveal a comet which could have been brightening substantially in a sky covered by bright moonlight. Furthermore, the first search could show a comet which has moved out from the Sun's direction. Some comets may normally never brighten sufficiently to be detected in small telescopes even when they are inside the Earth's orbit. However, if they undergo an outburst of brightness they could become easily seen. Thus, the twice-a-month search provides an increased chance to discover these outburst comets. Studies undertaken by various investigators on the discovery circumstances of previously discovered comets show that more comets have been discovered in the morning sky than in the evening sky. Thus the prospective comet hunter should ensure that morning activity receives as much as if not more attention than evening effort. In recent times, the application of advanced CCD technology to discover very faint near Earth orbit objects will in the future severely limit the opportunities for new comets to be found visually with small telescopes. A prime example of the new technique is the very successful LINEAR program operating in New Mexico, described in the magazine "Astronomy" April 1999, pages 60 to 61. However, until a similar system is based in the southern hemisphere there will continue to be opportunities for the visual discovery of new comets which come from the south. William Bradfield is one of the most prolific comet hunters of the 20th Century, having been credited with the discovery of 17 comets visually between 1972 and 1995. William still actively seeks comets today, having recently discovered his 18th comet in April 2004
You probably mean the comet that was recently seen in the southern hemisphere. It was green because of the particular ions in the gas of the tail. The name of this comet is Comet Lemmon (C / 2012 F6).
What is Halley's Comet's scientific name?
Halley's Comet's scientific name is 1P/Halley, where "P" stands for periodic comet. It was named after the astronomer Edmond Halley, who predicted its return in 1705 based on historical observations.
Comets are invisible except when they are near what?
Comets become visible when they are closer to the sun and begin to heat up, causing them to develop a visible coma and tail. This closer proximity to the sun typically occurs in the inner solar system, where they become brighter and more conspicuous.
How does a comet change as it travels through space?
Comets are like "dirty snowballs"; frozen gasses with dust and rocks in them. Each pass near the Sun causes the comet's nucleus to be exposed to intense sunlight, which causes some tiny fraction of the gas to evaporate and carry some of the dust and rock away into space. The gas and dust, near the Sun, cause the comet's "tail", and repeated passes cause dust and rock to spread out along most of the orbit of a comet. When the Earth enters one of these trails of old comet dust, we have meteor showers.
On rare occasions, comets break apart or even more rarely, crash into planets. In 1994, the comet Shoemaker-Levy 9 broke apart and then collided with the planet Jupiter.
When did the last Haley's Comet pass by?
Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.
Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.
Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.
Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.
Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.
Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.
Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.
Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.
Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.
Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.
Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.
What was the first comet to be visited by a spacecraft?
The comet now known as Halley's Comet has been observed since at least 240 BCE, but it was not known to be something that reappeared periodically. It wasn't until 1705 that English astronomer Edmond Halley determined that it was the same comet that appeared periodically.
When did Hailey's comet change to Halley's comet?
Halley's Comet is a long-term comet that appears about once every 75 to 76 years. It notably appeared in the year of Mark Twain's birth (1835) and again in the year of his death (1910). Its most recent appearance was in 1986 and it will not approach the Sun again until 2061.
Stars. Comets in our star system orbit the sun (the only star in our system). Comets that orbit planets are called "moons."
Long period comets come from the Oort cloud which exists outside the orbit of Eris (the furthest dwarf planet I can think of off the top of my head of beyond Pluto). Sometimes objects in the Oort cloud are disturbed out of their regular orbit by collisions or the effects of gravity from other bodies in close proximity. The object's orbit then changes to one which brings it toward the sun. These objects have ice on them called volatiles which begin to evaporate and out gas approximately at the distance of the orbit of Jupiter from the Sun. This is what causes the tail of the comet which can span millions of miles in the solar wind. Some Oort cloud objects settle into a highly elliptical orbit bringing the comet into the inner solar system at a regular intervals (such as Halley's Comet which returns approximately every 75 years). Others will end up on a suicide course thus crashing into the Sun. There are many comets with a wide variety of orbital periods. Some short and some very long.
Short period comets hail from the Kuiper Belt beyond Neptune, which includes Pluto and Eris.
What does Halley's comet look like?
Halley's comet appears as a bright ball of light with a long, glowing tail. It is typically visible to the naked eye and has been observed by astronomers for centuries. The length and brightness of its tail can vary depending on its position in its orbit around the sun.
What happens when comets are far from the sun?
As the comet moves farther away from the sun, the tail begins to diminish, as the heat and solar wind pressure on the cometary nucleus decreases. Far away from the sun, near the most distant point in it's orbit, the ices in the nucleus are frozen, and the comet is quiet.
Who is comet west named after?
Comet West is named after its discoverer, Richard M. West, who observed the comet in 1975.
A NEO is a Near Earth Object.
It is is a Solar System object whose orbit brings it into close proximity with the Earth. All NEOs have a perihelion distance < 1.3 AU . They include a few thousand Near Earth Asteroids (NEAs), near Earth comets, a number of solar orbiting spacecraft, and meteoroids large enough to be tracked in space before striking the Earth.
NEA have orbits that lie partly between 0.983 and 1.3 astronomical units away from the Sun.
Asteroid 1989 FC approached Earth on March 23, 1989. The 300 meter missed the Earth by 700,000 kilometers passing through the exact position where the Earth was only 6 hours before. If the asteroid had impacted it would have created the largest explosion in recorded history.
Asteroid 1950 DA will approach Earth on March 16, 2880, during its close approach it has been estimated as having a 1 in 300 chance of impacting with the Earth. It has a diameter of about a kilometer (.6 of a mile).
How many years does it take for comet to come by earth?
Actual collisions are pretty rare. Most 'space debris' burns up in the atmosphere long before it hits the planet.
No, all elements present in meteorites are found on the periodic table of elements. The formation of meteorites is linked to the same materials that make up the Earth and other celestial bodies, so they are composed of known elements.
How many years does Halley's comet take to reappear?
It takes some 75 to 76 years for Halley's Comet to orbit the sun. It last appeared in the inner Solar System in 1986, and will next appear in mid 2061. A link is provided to the Wikipedia article on Comet Halley.
a comet is relatively small extraterrestrial body consisting of a frozen mass that travels around the sun in a highly elliptical orbit which can be found in space. Average people have been known to find comet's The Comet can be found in space. Almost anywhere in space if you look hard enough with a telescope.
What are some superstitious beliefs about comets meteors stars and transet of planets?
There are many superstitions that comets, asteroids, and meteors are signs of the end of the world. If you research history, you can find that a lot of comets coincide with natural disasters. This has been a big reason that some people believe comets are a sign of doomsday. Again, this is a superstition. The Bible identifies apostates with comets and asteroids.
