Astronomer Part 1 Quiz

Nicolaus Copernicus (1473–1543) was a Polish astronomer who proposed that the Sun, not the Earth, is at the center of the solar system, revolutionizing astronomy.

Galileo Galilei (1564–1642) was an Italian astronomer who observed Jupiter’s moons using a telescope, providing strong evidence for the heliocentric model.

Johannes Kepler (1571–1630) was a German astronomer who discovered the laws describing planetary orbits, including elliptical motion and orbital periods.

William Herschel (1738–1822) was a German-born British astronomer who discovered Uranus, expanding the known solar system for the first time in modern history.

Ole Rømer (1644–1710) was a Danish astronomer who estimated the speed of light by observing the eclipses of Jupiter’s moon Io.

William Herschel not only discovered Uranus but also catalogued nebulae and detected infrared radiation, expanding observational astronomy.

Edwin Hubble (1889–1953) was an American astronomer who observed that galaxies are moving away from us, leading to the concept of the expanding universe.

Claudius Ptolemy (c. 100–170 CE) was a Greco-Egyptian astronomer who formulated the Ptolemaic geocentric system, placing Earth at the center of the universe.

Urbain Le Verrier (1811–1877) was a French mathematician and astronomer who predicted Neptune’s position based on gravitational calculations before it was seen through a telescope.

Annie Jump Cannon (1863–1941) was an American astronomer who created the Harvard Classification Scheme, organizing stars by their spectral characteristics.