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His achievements include improvements to the telescope and consequent astronomical observations and support for Copernicanism.
He didn't he improved the existing telescope and turned it to astronomical use around 1609
I suspect the answer you're looking for is Galileo Galilei. It just has two problems: Galileo didn't "invent the telescope", nor did he "develop a heliocentric view of the universe." The telescope was invented in the Netherlands; Galileo simply improved on it and was probably the first to apply it to astronomical observations instead of just looking for distant ships. Also, Copernicus is (properly) credited with the heliocentric view; Galileo's observations supported this, but he didn't come up with it.
A Galilean Telescope is also an Astronomical Telescope so it is just a subset of Astronomical Telescopes.
Galileo Gailei is the first person credited with using the telescope for astronomical observations. He did not invent the telescope. He is the first to have seen moons going around Jupiter, the rings of Saturn (though he incorrectly identified them), and that the Moon had cliffs and craters.
His achievements include improvements to the telescope and consequent astronomical observations and support for Copernicanism.
Pythagoras Galileo was the person who made the first famous observations with a telescope.
He didn't he improved the existing telescope and turned it to astronomical use around 1609
Galileo was the first person to use a telescope for astronomical research.
I suspect the answer you're looking for is Galileo Galilei. It just has two problems: Galileo didn't "invent the telescope", nor did he "develop a heliocentric view of the universe." The telescope was invented in the Netherlands; Galileo simply improved on it and was probably the first to apply it to astronomical observations instead of just looking for distant ships. Also, Copernicus is (properly) credited with the heliocentric view; Galileo's observations supported this, but he didn't come up with it.
A Galilean Telescope is also an Astronomical Telescope so it is just a subset of Astronomical Telescopes.
Galileo Gailei is the first person credited with using the telescope for astronomical observations. He did not invent the telescope. He is the first to have seen moons going around Jupiter, the rings of Saturn (though he incorrectly identified them), and that the Moon had cliffs and craters.
Galileo Galilei.
The first person to look at the night sky with a telescope and record what he saw and try to make deductions from his observations was Galileo Galilei. Galileo had a difficult personality and he tried to assert that he was the only person allowed to make astronomical discoveries with a telescope, but, putting that aside, he was a serious scientist who made several important discoveries in physics.
Galileo Galilei
Gallelio was the inventor of the astronomical telescope. He was also the first to use it and the first to observe the mountains on the moon
Why, the telescope, of course! Using his telescope, Galileo was able to make observations of the heavens in a way no one else was able to before.