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People used to believe that everything in space, including the Sun, orbited the Earth. The person who discovered moons orbiting Saturn was Galileo. From this observation, Galileo determined that smaller objects went around larger ones, which led to the idea that the Earth's Moon went around the Earth, and that the Earth went around the Sun.
Galileo was criticized and punished for spreading this idea, which was against the current views of the Church.
Wiki User
∙ 11y ago
Wiki User
∙ 10y agoThe first such planet was discovered in 1995 using a ground-based telescope.
The method was to detect slight "wobbles" in the motion of the star caused by the planet's gravity
Astronomers used spectroscopy and detected Doppler effects caused by the wobbles. The scientific name is the "radial velocity" method.
The Kepler Space Telescope (KST) works by detecting "occultations"; times when the planet passes between the star and the Kepler telescope.
Imagine aiming a telescope at the Sun, and detecting houseflies flying high overhead by the amount of sunlight that the flies are blocking. Sort of like that. The Kepler telescope is (was, actually, since its gyroscopes have failed and it can no longer maintain its precise orientation) one of the most precise light-intensity-measuring devices ever built.
Please note that this method will detect very few planets. It cannot detect small planets, because a small planet doesn't block enough light. It can't detect planets in a star system that's inclined to us, because the planet would never pass between the star and the KST.
And yet..... The KST has detected THOUSANDS of planets, and a year's worth of observations haven't been analyzed yet! Given that the KST can detect only a very few stars, when the geometry is just right, that must mean that there are planets around almost every star!
Wiki User
∙ 6y agoCopernicus
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Why don't planets attract each other?
because gravity and inertia are kinda of playing a game of tug a war but both sides are equal so they do not move
What evidence do you have that the planets move in elliptical orbits around the sun and not in circular orbits?
Elliptical orbits of the planets around the sun actually match what we observe. Newton's Theory of Universal Gravitation states that planets will move around the sun in elliptical orbits.
Do the electron cloud orbit like the sun?
First, recall that planets orbit the sun, not the other way around. Secondly, the term electron cloud is used to describe the body of electrons that orbit the nucleus of an atom. To answer your question as succinctly as possible, the analogy of planets orbiting the sun is one of the best to consider when thinking about the orbit of electrons
What is your third planet out from the sun?
SOLAR SYSTEM: Sun - Mercury - Venus - Earth - Mars - Jupiter - Saturn, Uranus... and so on
What rocks orbit the sun?
Terrestrial planets and moons of both gaseous and terrestrial planets. Don't forget Dwarf planets and the asteroid belt.
The first scientist to argue that the planets orbited the sun was?
kepler
Who discovered that planets orbit the sun?
The idea that planets orbited the Sun had been thought of many times before, but it was not until the 17th century that this idea was actually supported by evidence from the first telescopic observations of Galileo Galilei.
Is it true that Brahe was the first astronomer to understand that the planets orbited the sun in an ellipse?
Yes, True
What planets existed in the year 1600 that orbited your sun?
The same planets that orbit today, though Uranus and Neptune had yet to be discovered, along with Pluto (now regarded as a Dwarf Planet).
Who was the first to believe that all planets except Earth orbit the sun?
I'm not aware that any observer EVER argued that "all planets except Earth" orbited the Sun. The first person we know of to argue that the Sun was the center of things, and that the Earth orbited the Sun, was Aristarchus of Samos, a Greek astronomer and mathematician about 2400 years ago.
What orbits the central object of your solar system?
The Sun is the central object in the Solar System; it is orbited by planets, asteroids, meteors, dust particles, and comets.The Sun is the central object in the Solar System; it is orbited by planets, asteroids, meteors, dust particles, and comets.The Sun is the central object in the Solar System; it is orbited by planets, asteroids, meteors, dust particles, and comets.The Sun is the central object in the Solar System; it is orbited by planets, asteroids, meteors, dust particles, and comets.
How was Copernicus model of the universe different from ptolemy's?
Copernicus's model thought that the planets orbited the sun. Ptolemy's model thought that the planets orbited the moon.No. The above answer is incorrect.Copernicus's model thought that the planets orbited the sun. Ptolemy's model thought that the planets orbited the EARTH in epicycles. Not the moon. (The model that modeled the planets orbiting earth was the Geocentric model. Aristotle theorized this.)Copernicus's model is known as the Heliocentric model. Ptolemy's theory of epicycles is when the planets revolved in large circles around Earth.
What are two first two planets?
The first two planets discovered were Earth and Mars.Another Answer:The first two planets, with respect to the Sun, are Mercury and Venus.
How was Copernicus model of the universe different from Ptolemy's model?
Copernicus's model thought that the planets orbited the sun. Ptolemy's model thought that the planets orbited the moon.No. The above answer is incorrect.Copernicus's model thought that the planets orbited the sun. Ptolemy's model thought that the planets orbited the EARTH in epicycles. Not the moon. (The model that modeled the planets orbiting earth was the Geocentric model. Aristotle theorized this.)Copernicus's model is known as the Heliocentric model. Ptolemy's theory of epicycles is when the planets revolved in large circles around Earth.
How was Copernicus model of the universe different from ptolemys model?
Copernicus's model thought that the planets orbited the sun. Ptolemy's model thought that the planets orbited the moon.No. The above answer is incorrect.Copernicus's model thought that the planets orbited the sun. Ptolemy's model thought that the planets orbited the EARTH in epicycles. Not the moon. (The model that modeled the planets orbiting earth was the Geocentric model. Aristotle theorized this.)Copernicus's model is known as the Heliocentric model. Ptolemy's theory of epicycles is when the planets revolved in large circles around Earth.
Who realized that the planets orbited the sun?
It was Nicolaus Copernikus. Type it into Wikipedia for more info.
What was Copernicus' theory about the sun and planets. how was it different from what people believed before?
Copernicus's theory was called the Heliocentric Theory. It said that the Earth and planets orbited around the sun, and the Sun was the center of the universe. The previous theory, mainly advocated by the Catholic Church, was called the Geocentric Theory; which stated that the Sun and planets orbited around the Earth, and that the Earth was the center of the Universe.
