Astronomy Timeline

3000 BC TABLE OF CONTENTS2500 BC STONEHENGE 2.... STONEHENGE 310 BC ARISTARCHUS IS BORN 3.... ARISTARCHUS 230 BC ARISTARCHUS DIES 4.... PTOLEMY 90 AD PTOLEMY IS BORN 5.... TYCHO BRAHE 168 AD PTOLEMY DIES 6.... GALILEO GALILEI 7.... JOHANNES KEPLER 1546 TYCHO BRAHE IS BORN 8.... TELESCOPE 1564 GALILEO GALILEI IS BORN 9.... ISAAC NEWTON 1571 JOHANNES KEPLER IS BORN 1601 TYCHO BRAHE DIES 1608 TELESCOPE IS INVENTED 1630 JOHANNES KEPLER DIES 1642 GALILEO GALILEI DIES, ISAAC NEWTON IS BORN 1727 ISAAC NEWTON DIESASTRONOMY TIMELINEMichelle Marin

STONEHENGE THE STONEHENGE, MANY HISTORIANS BELIEVE, WAS BUILT IN 2500 BC. HOW DID IT CONTRIBUTE TO ASTRONOMY? PEOPLE WHO STUDIED THE STONEHENGE BELIEVE THAT IT WAS AN ANCIENT OBSERVATORY. PEOPLE ALSO BELIEVE THAT IT HAS AN ASTROLOGICAL AND A SPIRITUAL MEANING BEHIND IT, TOO. MANY PEOPLE BELIEVE THAT THE STONEHENGE WAS BUILT TO PREDICT LUNAR AND SOLAR ECLIPSES. BUILT3000 BC 2500 BC

ARISTARCHUSARISTARCHUS WAS BORN IN 310 BC AND DIED IN 230 BCARISTARCHUS WAS THE FIRST KNOWN PERSON TO SAYABOUT THE HELIOCENTRIC MODEL OF THE SOLAR SYSTEM.THE HELIOCENTRIC MODEL OF THE SOLAR SYSTEM STATESTHAT THE SUN IS THE CENTER OF THE SOLAR SYSTEM,NOT THE EARTH.ARISTARCHUS ALSO BELIEVED THAT STARS WERE FAR AWAY,AND AT THAT TIME, THEY BELIEVED THAT THEY WEREAROUND THE ORBIT OF SATURN. BORN DIED310 BC 230 BC

PTOLEMYPTOLEMY BELIEVED THAT EARTH WASTHE CENTER OF THE UNIVERSE. THIS IS EARTHTHE GEOCENTRIC MODEL OF THE SOLARSYSTEM. IT IS ALSO CALLED THEPTOLEMAIC MODEL PLANET BORN DIED 90 AD 168 AD

TYCHO BRAHETYCHO BRAHE WAS GIVEN AN ISLAND IN 1574 TO SETUP AN OBSERVATORY, WHICH BECAME ONE OF THEBEST OBSERVATORIES IN ALL OF EUROPE. HE BUILTNEW INSTRUMENTS. HE GOT ALL OF HIS MATERIALSAND ITEMS HE OWNED AND LEFT IN 1597. AFTER HISDEATH IN 1601, HIS INSTRUMENTS WERE PRESERVEDAND LATER ON, WERE LOST.BORN DIED1546 1601

GALILEO GALILEI 1597- HE SUPPORTED THAT THE SUN WAS THE CENTER OF THE SOLAR SYSTEM. 1609- HE USED THE TELESCOPE AND IMPROVED IT, FIRST WAS 9 POWER, THEN HE IMPROVED IT TO 30 POWER. HE THOUGHT HE PROVED THAT THE EARTH WAS REVOLVING AROUND THE SUN WITH TIDES, BUT HE WAS WRONG, IT WAS NOT THE REASON. 1632- HIS BOOK GOT PUBLISHED, THE CHURCH ORDERED FOR THE PUBLICATION TO STOP. 1633 HE HAD TO STAND TRIAL FOR HERESY. HE WAS SENTENCED TO LIFE IMPRISONMENT. 1638 HE PUBLISHED ANOTHER BOOK ABOUT MOTION, BUT AT THAT TIME HE WAS ALREADY COMPLETELY BLIND.BORN DIED1564 1597 1609 1632 1633 1638 1642

JOHANNES KEPLERJOHANNES KEPLER BELIEVED THAT ALL PLANETORBITS WERE ELLIPSE AND NOT PERFECTLYCIRCULAR.KEPLER ALSO BELIEVED THAT THE CLOSER APLANET WAS TO THE SUN, THE FASTER IT WILLREVOLVE, AND THE FURTHER IT IS, THE SLOWER ITWOULD REVOLVE.LASTLY, HE BELIEVED THAT PLANETS FURTHERAWAY WOULD HAVE A SLOWER ROTATION RATE. BORN DIED 1571 1630

TELESCOPETHE TELESCOPE WAS INVENTED BY HANS LIPPERHEY. HE WAS BORN INGERMANY AND HIS HOME WAS IN HOLLAND. THE TELESCOPE HIGHLYAFFECTED ASTRONOMIC WORLD. THIS IS BECAUSE TELESCOPES, SUCHAS THE HUBBLE SPACE TELESCOPE, LET US KNOW ABOUT OTHERPLANETS THAT ARE OUT THERE IN OUR UNIVERSE. EVEN THOUGH THEHUBBLE SPACE TELESCOPE IS A LOT MORE ADVANCED THAN THETELESCOPE LIPPERHEY INVENTED, LIPPERHEY’S TELESCOPE WAS STILLA START. IT HELPS US SEE OTHER TRAITS OF OTHER PLANETS ANDBECAUSE OF THE TELESCOPE, WE CAN EXPAND OUR KNOWLEDGEABOUT OUTER SPACE. IT HELPS US SEE BEYOND OUR EYES. INVENTED 1608

ISAAC NEWTONISAAC NEWTON CONTRIBUTED TO ASTRONOMY WITH THELAW OF GRAVITY. THIS IS BECAUSE THE LAW OF GRAVITYHELPED PROVE THE HELIOCENTRIC SOLAR SYSTEMWOULD ACTUALLY WORK, BECAUSE EVERYONE ALWAYSWAS THINKING IF THE EARTH WAS MOVING, THEN WHYISN’T EVERYTHING IN THE EARTH FLYING AROUND? THELAW OF GRAVITY HELPED PROVE THAT EVEN IF THEEARTH IS MOVING, NOT EVERYTHING HAS TO BE FLYINGAROUND. BECAUSE OF ISAAC NEWTON, WE KNOW THATALL THE PLANETS IN FACT DO ORBIT THE SUN, NOT THEEARTH. BORN DIED 1642 1727

Astronomy Timeline

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