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Astronomy_

test

QuestionAnswer
List the planets in order Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto
What objects in our solar system emit its own light? Sun
Which planets have similar density to earth? mercury venus mars
what 3 things characterize and object as a planet? cleared its neighboor of rock, orbits sun, and round shaped
What is the location/distance of the Oort cloud? far beyond pluto
What was the solar nebula? a cloud of particles of gas and dust, what solar system was formed from
List the steps of the planet forming process gas and rock form together one big rock (planet) forms atmosphere and gravitational pull
What is an exoplanet and how are they observed/found? planets around other stars, their gravitaional effect of a star
describe gravitational lensing and what it is used for uses the gravity of other stars to absorb other light
Compare comes and asteroids. Where does each one orbit Comets- ice & water -- Kyper Belt Asteroids- rock of materials -- Asteroid belt
List the steps in solar system formation from the nebular hypothesis nebuala spins aroudn, star forms bulge, planets form, and then form atmosphere
Why do small planets not have significant atmospheres? not enough of an iron core so no eltomagnetic field andn ot enough gravity
what is the estimated age of the solar system 4.5 billion years old
Compare jovian and terrestrial planets and their average densities Terr- small, close to the sun, can recieve light for better temperature Jovian- large, far from the sun, very far away and so could not support life
What is the solar system? planets and moons orbiting a light source
What are the approximate shapes of the planetary orbits and how close are they in the plane eliptical, very far apart
list the terrestrial planets and the jovian planets Terrestrial- Mars Venus Eath Mercury Jovian- Saturn Uranus Neptune Pluto Jupiter
Which direction do the planets orbit the sun counter clock wise
Created by: jeerey
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