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Dwarf Planet Pluto
A dwarf planet that was the 9th planet from the Sun in our solar system until 2006 when it was determined it did not satisfy the requirements of being a planet.
2,286 Questions
What planet is brighter than any planet?
The brightest planet in the night sky is Venus. And this is due to its highly reflective atmosphere, and the fact that it's the closest planet to the Earth.
How do plutons become visible at earths surface if they are formed underground?
Plutons become visible at the Earth's surface through erosion. Over time, the surrounding rocks are weathered away, exposing the once-buried plutons. This process can reveal the igneous rocks that make up the plutons, giving geologists insights into the Earth's subsurface.
force = mass x acceleration
force = mass x (distance/sec2)
force x distance = mass x (distance2/sec2) force x distance= work done (energy)
energy = mass x velocity2 10km/h = 10000m/h = 166and 2/3 m/s
energy as ball hits person on ice = 20 x 166.672 = 555577.778Joules
now energy is neither created nor destroyed it is simlply transferred from one form to another
assuming ice has no friction then
555577.778= newmass x velocity2
velocity2 = 555577.778/80 = 6944.722225
velocity = 83.335m/s = 5000.1m/h = 5km/h
Which scientist speculated that magnetism hold planets in their orbit?
No scientist speculated it because scientists know that electric and magnetic attraction is polarised, i.e. some objects attract and others repel. Also magnetism does not have poles, so it is impossible to generate a 'central force' which is necessary for an orbit as we know it.
On the other hand gravity is a weak force but all objects attract all other objects and it is possible for a massive object to provide a central gravity force to set up orbits.
Why should scientists should discover more planets?
Discovering more planets helps scientists to better understand the diversity of planetary systems in the universe. This can provide valuable insights into the formation and evolution of planets, as well as clues about the potential for extraterrestrial life. Additionally, expanding our knowledge of planets outside our solar system can inform our understanding of Earth's place in the cosmos.
Space probes have crossed Pluto's orbit but never have visited the planet Why?
Space probes like New Horizons have only performed flybys of Pluto because it is very far away from Earth and the journey would require a significant amount of time and resources. Additionally, the spacecraft would need to carry enough fuel for the long journey and for entering Pluto's orbit, which adds complexity and cost to the mission.
Is a year how long it takes a planet to orbit the sun?
Yes, a year is the time it takes a planet to complete one orbit around the sun. This is also known as the orbital period. Different planets have different orbital periods based on their distance from the sun.
How scientist know stars have planets?
Scientists know that stars have planets through various methods, including measuring the wobble of a star caused by a planet's gravitational pull, observing the dimming of a star's light as a planet passes in front of it (transit method), and direct imaging using powerful telescopes. These methods have helped identify thousands of exoplanets orbiting distant stars.
If you were 12 years old on earth how old would you be on the sun?
It's not possible to be on the sun due to its extreme temperatures, but if you mean how would age be calculated on the sun, you would not have an age in the same way as on Earth since time is not experienced in the same manner due to the sun's conditions.
The length of a "solar day" on Pluto is determined by its axial tilt.
The planet takes 6.38 Earth days to rotate, and 249 Earth years to go around the Sun. But the tilt (60 degrees to the plane of its orbit) produces exaggerated seasons with some polar areas of the planet spending many Earth years in either the constant dim sunlight or constant darkness.
What supports the idea that Pluto is not a planet?
Pluto does not clear its orbit of debris, a key criteria for planethood, as defined by the International Astronomical Union in 2006. Additionally, Pluto shares characteristics with other objects in the Kuiper Belt, suggesting it is more akin to a dwarf planet or large asteroid than a full-fledged planet.
What supports the idea that Pluto is A PLANET?
The fact that Pluto has hydrostatic equilibrium (a roughly spherical shape caused by gravitational influence) as attested to via the Hubble images. One could argue that it is a double planet with Charon which also maintains hydrostatic equilibrium and is bigger than the dwarf planet Ceres. This reviewer happens to believe that the idea of a planet completely clearing it's orbit of debris as a prerequisite to be a planet is silly and in many cases involving lagrange points is impossible.
No, Pluto does not have humidity as it has a very thin atmosphere composed mostly of nitrogen, methane, and carbon monoxide. These gases do not create the conditions necessary for humidity to exist on Pluto.
What is the symbol of Charon the dwarf planet?
The symbol for Charon, the largest moon of the dwarf planet Pluto, is a combination of the letters "C" and "H." The "C" stands for "Charon" and the "H" represents the shared first initial of Pluto's discoverer, Clyde W. Tombaugh.
Name the 4 terrestrial and 4 giant gas planets?
Jupiter, Saturn, Uranus & Neptune are the four outer planets the four inner planets are Mercury, Venus, Earth, and Mars.
Year is the amount of time it takes the Earth to revolve around the sun. It takes Pluto about 250 years to complete one revolution about the sun.
In 1905Percival Lowell predicted where would be found?
In 1905, Percival Lowell predicted that a new planet, which he called "Planet X," would be found beyond Neptune. This prediction eventually led to the discovery of Pluto in 1930, though it was later reclassified as a dwarf planet.
What is the Definition of Classical planets?
Classical planets are the five planets visible to the naked eye from Earth: Mercury, Venus, Mars, Jupiter, and Saturn. They have been observed since ancient times and hold significance in various astrological and astronomical systems.
Kepler's third law of planetary motion, which states that the square of the orbital period of a planet is directly proportional to the cube of its semi-major axis or orbital radius. This relationship allows astronomers to predict the orbital periods of planets based on their distances from the sun.
When did they discover Pluto was not a planet?
In August 2006, the International Astronomical Union (IAU) redefined the criteria for what qualifies as a planet. Pluto did not meet these updated criteria and was therefore reclassified as a "dwarf planet" rather than a full-fledged planet.
Is there a moon that doesn't orbit a planet?
Yes, there are moons that do not orbit planets but instead orbit other celestial bodies like asteroids or dwarf planets. For example, some moons of dwarf planets in the Kuiper Belt do not orbit a planet.
What are the 4 dwarf planets called?
Pluto, Eris, Ceres, Haumea and Makemake are the dwarf planets found so far. As you can see there are 5 now, not just 4.
Has new horizons reached pluto yet?
Yes, NASA's New Horizons spacecraft conducted a historic flyby of Pluto on July 14, 2015, capturing the most detailed images of the dwarf planet to date. It provided valuable data and insights into Pluto's geology and atmosphere.
Comets are composed mostly of?
Comet tails are made up primarily of dust, rock, and gas expelled from the comet as it is heated by the Sun. The frozen gases expand and throw off material, some of which is blown by the solar wind into a "tail" for the comet.
(The tail is always pointing away from the Sun.)
melted materials (apex)
It thickness or thinness is measured by the molecular weight and the surface pressure. The average molecular weight is about 28 and the pressure is 15 lb/sq.in. That can be compared with atmospheres on other planets e.g. Venus, Mars and all the outer planets.
