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November 1, 2025
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21/6 Astronomy timeline project
Category:
Other
Updated:
2 Jul 2019
0
0
355
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Created by
Hannah Louise Wong-Ming
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NZ artists timeline
By
Hannah Louise Wong-Ming
24 Nov 2019
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361
Events
280 BCE: Heliocentrism proposed
1054 ACE: Taurus supernova observed
1572 ACE: Cassiopeia supernova observed
1543 ACE: Copernicus publishes heliocentric theory
1582 ACE: Gregorian calendar introduced
45 BCE: Julian calendar introduced
1930 ACE: Pluto discovered!
2006 ACE: Pluto stripped of planetary status
1705 ACE: Edmond Halley predicts comet's return
1758 ACE: Halley's comet returns!
Periods
280 BCE:
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