Comets

Pallas or 2 Pallas has a mass of about 2.11 x 1020 kg

The Earth for comparison has a mass of 5.9736 x 1024 kg

No, comets and shooting stars are different astronomical phenomena. Comets are icy bodies that release gas and dust as they orbit the Sun, while shooting stars are meteors that enter Earth's atmosphere and burn up, producing a streak of light.

There is no record of a comet directly hitting Earth in recorded history. Comets are typically small icy bodies that mostly burn up upon entering the Earth's atmosphere due to friction with the air. However, they can cause spectacular meteor showers when their debris interacts with Earth's atmosphere.

A planet or comet will move faster in its orbit when it is closer to the sun due to the increase in gravitational pull. As it moves farther from the sun, its speed decreases as the gravitational force weakens.

Comet is an open-source machine learning model training tool that helps in managing and tracking machine learning experiments. It provides features like experiment visualization, performance metrics tracking, and collaboration among team members. Comet aims to improve the efficiency and reproducibility of machine learning experiments.

Almost true, that describes more of an asteriod, a comet is like a dirty snowball made of ice and gas.

Comets are typically found in the outer regions of the solar system, beyond the orbit of Neptune. They can be observed from Earth when they come closer to the sun and develop a visible tail due to the solar wind. Astronomers track comets using telescopes and space missions.

As the question specifies brightness, the brightest star in the Universe is our Sun - because it is the closest star to us.

The most luminous star is another question: See related question.

Halley's comet's mass (weight) is exactly 2.2×1014 (TO the power of 14)

The next notable comet scheduled to pass by Earth is Comet Leonard, which is expected to be visible in December 2021. It will be the brightest comet of the year and should be observable with binoculars or a small telescope from dark sky locations. Keep an eye out for updates from astronomers as the date approaches for the best viewing opportunities.

The solar system is composed of the sun, eight planets, and various smaller celestial objects like asteroids and comets. Earth's nearest celestial neighbor is the moon, which is approximately 384,400 kilometers (238,855 miles) away.

The sun ejects solar winds which move much faster than any comet. This causes a stream of material (the tail) to point away from the Sun, irrespective of the direction the comet is travelling. The Sun's radiation may also have an effect. (Source: Wikipedia)Bad definition!

When a blue star blows up t is called a supernova, which eventually leads into the formation of a black hole. Although a regular star, say our sun, doesn't blow up, it turns into a huge super giant, it grows 5X its normal size and it will either gulp earth up, or burn us to death, but don't worry, that won't happen for a couple billion years, but not so good for your Great Great Great Great Great Great Great Great Great [could go forever] grand children :D

Jean-Louis Pons discovered a total of 37 comets over his career as an astronomer.

Comet Halley was last visible to us in 1997. It only appears about every 75 or 76 years. It is predicted to be visible again on the 28th July 2061.

Halley's Comet travels at a speed of about 55 kilometers per second when closest to the Sun. Its average speed during its orbit is around 66,000 miles per hour.

A giant cloud of dust and evaporated gases surrounds the nucleus. The coma may be larger than the size of Jupiter. The fine dust particles reflect sunlight brightly and the gases both absorb and glow with energy. The coma gives a comet its bright, fuzzy appearance. The coma and tail form only when the comet gets close enough for the Sun to melt the nucleus.

While asteroids and comets have different constitutions - asteroids are mostly metals and rocks while comets consist of water-ice, dust and rock - with comets potentially being potentially less dense, comets travel much faster than asteroids. An asteroid may travel upwards of 40,000 miles per hour, a comet travels over 150,000 miles per hour.

Comet Halley is currently still sailing away from the Sun and most of the planets in our solar system as it makes its way to its aphelion (farthest point from the Sun) in 2024, out around the orbit of Pluto. It was last closest to the Sun in 1986, and will return to perihelion (closest to the Sun) in 2061. Comet Halley is currently still sailing away from the Sun and most of the planets in our solar system as it makes its way to its aphelion (farthest point from the Sun) in 2024, out around the orbit of Pluto. It was last closest to the Sun in 1986, and will return to perihelion (closest to the Sun) in 2061.

Leftover ice-rich planetesimals are typically referred to as comets when they enter the inner solar system and start to form a glowing coma and tail due to the sublimation of their volatile compounds. Comets are distinguished from asteroids by their distinct characteristics and behavior when they approach the Sun.

Halley's Comet is next due to pass by Earth in 2061. It follows a roughly 76-year orbit around the Sun.

Comets are small bodies of rock and ice which are in a highly eccentric orbit around the sun, which is a star. There are thought to be other comets orbiting other stars, but we would not be able to detect them from earth.

comets are given the designation reflecting the date of discovery of the comet.

they were named by their discoverers with certain guidelines about what constitutes a discovery and how many discoverers may be named.

Comets shine due to the reflection of sunlight off their icy nucleus and dust particles surrounding it. When a comet approaches the Sun, the heat causes the nucleus to melt and release gas and dust, forming a glowing coma and tail visible from Earth.