Heliocentric
And how does it differ from the geocentric model it replaced
places the Sun at the center, with Earth and other planets orbiting the Sun.
What were the key limitations or problems with the geocentric model?
nability to explain the retrograde motion of planets, the increasing complexity of epicycles needed to account for observed movements, and logical inconsistencies regarding the Sun's behavior
How are comets made?
made from the dust, gas, and ice that remained after the formation of the solar system
why they are named (after the radiant constellation),
after the constellation where their radiant point is located,
What happens when asteroids hit Earth
localized blast of heat, wind, and shockwaves that can destroy buildings, start fires, and cause earthquakes
What is its historical significance
The heliocentric model's significance lies in its revolutionary shift from the Earth-centered geocentric model to a Sun-centered system
How did the geocentric model explain the retrograde motion of planets
by proposing that planets move in small, circular paths called epicycles, which themselves travel along larger circles called deferents centered on the Earth.
What are comets called?
dirty snowballs" or "icy dirtballs"
what they are (Earth passing through comet/asteroid debris)
Meteor showers happen when Earth passes through the trail of small debris, called meteoroids, left behind by a comet or asteroid
Why didn't a planet form in the Asteroid Belt?
Jupiter's overwhelming gravitational influence disrupted any potential planetary growth by perturbing orbits and preventing material from coalescing into a larger body
What were the challenges to its acceptance
lack of direct observational evidence, the perceived contradiction with everyday experience (such as the inability to feel Earth's motion), resistance from established religious and philosophical doctrines that placed Earth at the center of the universe, and initial inaccuracies in the model itself, like the assumption of perfectly circular planetary orbits.
Who were the key historical figures associated with the geocentric model?
Aristotle and Claudius Ptolemy
How old is a comet?
4.6 billion years ago
"What causes meteors to burn up?"
primarily due to the rapid compression of air, not friction, which heats the meteoroid to thousands of degrees and causes it to glow and vaporize
What is the largest asteroid?
Ceres
What are its core tenets?
the Sun is at the center of the Solar System, and the Earth and all other planets revolve around it.
What is the core concept of the geocentric model?
What is the core concept of the geocentric model? Opens in new tab
How fast are comets?
interstellar comets like 3I/ATLAS reaching the highest recorded speeds of up to 130,000 mph (209,000 km/h)
"How fast do meteors travel?"
12 km/s (27,000 mph) to over 72 km/s (160,000 mph),
Where are most asteroids found?
in the region between the orbits of the planets Mars and Jupite
Where is the sun in the solar system?
The sun is in the center of the solar system
What is Geocentric
What is Earth is the center of our solar system
Where are comets located?
What is Oort cloud
"What is the difference between a meteoroid, a meteor, and a meteorite?
A meteoroid is a piece of space rock or debris orbiting the Sun, a meteor is the streak of light created when a meteoroid burns up in Earth's atmosphere
What is an asteroid
a rocky or metallic object orbiting the Sun that is too small to be classified as a planet or dwarf planet and lacks a tail of gas