The earliest-known proposal of the heliocentric model was put forward by the Greek philosopher and mathematician Aristarchus of Samos around 270 BC. He suggested that the Earth and other planets revolve around the Sun, challenging the prevailing geocentric view of the universe.
The earliest known person to have proposed a heliocentric model was the Greek astronomer and mathematician Aristarchus of Samos, about 300BCE. His views were not widely adopted, because the more "obviously correct" views of Aristotle prevailed.
The heliocentric model is the one that replaces the geocentric model because the heliocentric model better described the solar system.
I believe you are confusing two things here; there is no such thing as a "heliocentric model of telescope". There is a heliocentric model of our Solar System, and there are telescopes. The two are unrelated.
The scientist made the heliocentric model of the solar system. It is a word for the graphical model of our solar system.
In the heliocentric model, the sun is at the center of our solar system and the earth is the third planet that orbits it.
The sun
The Sun-centered or heliocentric model of the solar system is called the Copernican model (after Copernicus) and more closely matches the modern astronomical notions. By contrast, the geocentric or Earth-centric model is often called the Ptolemaic.
The earliest known proposal that the Sun was at the center of our solar system while the planets moved around it was by Aristarchus of Samos, a Greek mathematician and astronomer who lived in the 3rd century BC. (Others may have proposed it earlier, but no reference to them remains after 2400 years.) However, the views of Aristotle proved easier to accept. It wasn't until Copernicus developed the same theory (probably independently) based on more accurate and complete observational data that the heliocentric view of the solar system was widely accepted.
He is worth knowing about because he revived the Heliocentric modelSome say that he reveled the Heliocentric model but he didn'tBut he was the first person to try to push people to to believe in the Heliocentric model
The current model of the solar system was first conceived by Nicolaus Copernicus, but the idea of a heliocentric solar system was known to the Greeks of antiquity.
The Geocentric or Ptolemaic Model put the earth at the center of the Universe. The Heliocentric Model postulated by Copernicus and, before him, Aristarchus, places the Sun at the center of the Solar System. Galileo's observations proved the validity of the Heliocentric Model.