Who showed that our universe is heliocentric?

Answer 1

Copernicus

<<>> Copernicus was the first of the great astronomers of the Renaissance, when all old established ideas were challenged and re-examined. He spent time studying the way the planets move among the stars, and found some unsatisfactory aspects of the Ptolemaic theory which had stood for 1400 years.

The theory used combinations of circles and epicycles, and Copernicus turned his attention to the inner planets, Mercury, Venus and Mars, for which the Ptolemaic model used epicycles that were almost as big as the main circles. Copernicus suspected that this might be because the Earth is moving. He speculated that the large epicycles in the orbits of those planets were there to 'cancel out' the Earth's motion, and he devised an alternative model that had the Sun at the centre, with the Earth orbiting round it. The new model, published in 1543, was indeed simpler in that much smaller epicycles were necessary for the nearby planets. Epicycles were still required for things that we now understand as the eccentricity of the orbits and the tilt of their planes relative to the ecliptic.

However there were two major problems. First he had no way of proving that his model was any better than the Ptolemaic model, other than that it was simpler; secondly he was a Church official and well knew that the scriptures laid down that the Earth does not move.

This made him nervous and he was not persuaded to publish his work until the year he died. However a train of thought had been started that others took up, and 150 years later after major actions by many people including Tycho, Galileo, Kepler and Newton, the new model emerged in 1687 that is generally accepted today: the planets move in elliptical orbits under the force of the Sun's gravity.

Answer 2

"Nicolaus Copernicus was the astronomer that came up with the idea"

This is a very common misconception. The one who first came up with the idea and even presented a model of the Heliocentric view of the universe was Aristarchus, NOT Copernicus

Answer 3

The Heliocentric theory was first proposed about 2300 years ago, by Aristarchus of Samos (310-230 BC).

*Some argue that it was the Polish-German astronomer Nicolaus Copernicus (1473-1543), but his hypothesis was dated about 1800 years later. However, he was the first to give a clear explanation on what heliocentrism was. The search for a more reasonable explanation for the motion of the planets relative to the Earth, led him to his hypothesis, published in 1543.
The heliocentric model of the solar system was invented by someone called Aristarchus of Samos

Answer 4

yes. With the sun at the center the movement of the planets makes more sense and doesn't require invisible forces or epicycles to explain it. If the geocentric model were right it would disprove gravity completely since the movement of the stars and planets would have to be governed entirely by inexplicable forces. Try to imagine what it would be like if the sun revolved around the earth. When the sun and a planet likejupiter were in line, Jupiter would have to be moving at an insane rate of speed to maintain its orbital period yet it wouldn't fly out of the solar system

Answer 5

It was TYCHO BRAHE, as far as I know :)

Tycho Brahe (14 December 1546 - 24 October 1601), born Tyge Ottesen Brahe, was a Danish nobleman known for his accurate and comprehensive astronomical and planetary observations. Coming from Scania, then part of Denmark, now part of modern-day Sweden, Tycho was well known in his lifetime as an astronomer and alchemist.

In his De nova stella (On the new star) of 1573, he refuted the Aristotelian belief in an unchanging celestial realm. His precise measurements indicated that "new stars" (novae or also now known as supernovae), in particular that of 1572, lacked the parallaxexpected in sub-lunar phenomena, and were therefore not "atmospheric" tail-less comets as previously believed, but occurred above the atmosphere and moon. Using similar measurements he showed that comets were also not atmospheric phenomena, as previously thought, and must pass through the supposed "immutable" celestial spheres.[5]

Tycho Brahe was granted an estate on the island of Hven and the funding to build the Uraniborg, an early research institute, where he built large astronomical instruments and took many careful measurements, and later Stjerneborg, underground, when he discovered that his instruments in the former were not sufficiently steady. Something of an autocrat on the island he nevertheless founded manufactories such as paper-making to provide material for printing his results. After disagreements with the new Danish king in 1597, he was invited by the Bohemian king and Holy Roman emperor Rudolph II to Prague, where he became the official imperial astronomer. He built the new observatory at Benátky nad Jizerou. Here, from 1600 until his death in 1601, he was assisted by Johannes Kepler. Kepler later used Tycho's astronomical results to develop his own theories of astronomy.

As an astronomer, Tycho worked to combine what he saw as the geometrical benefits of the Copernican system with the philosophical benefits of the Ptolemaic system into his own model of the universe, the Tychonic system. Furthermore, he was the last of the major naked eye astronomers, working without telescopes for his observations.

Tycho is credited with the most accurate astronomical observations of his time, and the data was used by his assistant, Johannes Kepler, to derive the laws of planetary motion. No one before Tycho had attempted to make so many planetary observations.

Answer 6

Aristarchus of Samos, a Greek mathematician and astronomer, about 2300 years ago.

Answer 7

The first true heliocentric model was proposed by Copernicus.

Answer 8

Nicolaus Copernicus showed that our universe is heliocentric.

Answer 9

Nicolaus Copernicus, Galileo made it public.

Answer 10

Copernicus.