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By observing their movements. It is actually quite simple: If you watch a planet for two consecutive nights, you can already detect movement among the background stars. You can do this with the naked eye - no special instruments are required. Stars, on the other hand, seem to be unmovable, year after year. It may take decades or centuries to detect a change for some of the nearer stars.
What else can I help you with?
What is a scientist who studies stars and planets?
An Astronomer is a scientist who studies the stars and planets.
What do astronamers study?
earth and space science is the study of earth and its place in the universe.some earth scientist study the forces that have shaped earth throughout its long history.others study earth's oceans or its weather.space scientist study the planets and stars that exist beyond earth.
The planets appear to move through the background of stars because?
the planets orbit the Sun at varying speeds, causing them to appear to move against the fixed backdrop of stars as seen from Earth. This apparent motion is due to the Earth's own movement around the Sun, which creates the illusion of planets traversing the sky over time.
Why do planets appear to move through the background of stars?
Planets appear to move through the background of stars because they orbit the Sun at different speeds. As the Earth and other planets move in their orbits, their positions relative to the background stars change, causing them to appear to move across the sky. This is known as planetary motion.
Does mars twinkle in the night sky?
Mars does not twinkle in the night sky as much as stars do, because planets are closer to Earth and appear as solid, bright discs of light. Twinkling occurs when starlight is distorted as it passes through Earth's atmosphere, but planets are large enough to not twinkle significantly.
How do scientists know that planets are closer to earth than the stars?
not a clue
What is a scientist who studies stars and planets?
An Astronomer is a scientist who studies the stars and planets.
Why do stars planets and moons do not collide it self?
The moon is many times closer to the Earth than the stars are.
What is a planets and what is a star?
An Astronomer is a scientist who studies the stars and planets.
Why do the sun and planet appear to be moving through fixed stars?
The Sun and orbiting planets are MUCH closer to the Earth than other stars.
Which scientist said the earth is the center of the universe and all of the planets and stars orbit planet?
Pretty sure it was Ptolemy.
Which scientist would study stars and planets?
An astronomer.
Is the sun or other stars closer to Earth?
the sun is closer ot the earth than the other stars are .
What is closer to earth - the sun or other stars?
the sun is closer ot the earth than the other stars are .
What do astronamers study?
earth and space science is the study of earth and its place in the universe.some earth scientist study the forces that have shaped earth throughout its long history.others study earth's oceans or its weather.space scientist study the planets and stars that exist beyond earth.
The planets appear to move through the background of stars because?
the planets orbit the Sun at varying speeds, causing them to appear to move against the fixed backdrop of stars as seen from Earth. This apparent motion is due to the Earth's own movement around the Sun, which creates the illusion of planets traversing the sky over time.
Why do planets appear larger then stars?
because they're way closer than the stars
