Special Sub-Topic: The Great Astronomers Click Here To Play: The Great Astronomers

First off, this man is considered to be the founder of astronomy. Who is he?

Anaximander.

This man can be considered the first real astronomer in the modern sense of the word. He made careful obsevations(thousands of years before the advent of the telescope) and used mathematics to draw conclusions. His achievments include accurately measuring the tilt of the earth's axis and compiling an accurate star catalogue and a calendar that included leap years. Who is he?

Eratosthenes.

The most celebrated of the Arab astronomers, he wrote a boook called "On Stellar Motion". His full name is Abu 'Abd Allah Muhammad Ibn Jabir Ibn Sinan Al-battani Al-harrani As-sabi'. He is known (more conviently) as who?

Al-Battani.

What other famous Arab wrote a book in which he discussed stellar magnitudes and made star maps and catalogues?

Al-Sufi.

What famous astronomer built an observatory called Uraniborg (financed by King Frederick II of Denmark) where he designed astronomical instruments, attracted scholars from all over the world, and made meticulous astronomical observations-all before the advent of the telescope?

Tycho Brahe.

Which famous astronomer used the newly invented telescope to observe the moon, the phases of Venus, and the moons of Jupiter?

Galileo Galilei.

Which astronomer tirelessly mapped the skies and discovered the first new planet since ancient times?

William Herschel.

Which astronomer figured out mathematically that a comet seen in 1531, 1607 and 1682 was one single comet which was later named in his honor?

Edmund Halley.

Which famous astronomer built an observatory in Flagstaff, Arizona and thought that intelligent life surely existed on Mars?

Percival Lowell.

Which famous astronomer began classifying galaxies and realized that galaxies were moving away from each other?

Edwin Hubble.