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Ancient Roman Astronomy

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Courtney Drama

on 25 March 2015

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Transcript of Ancient Roman Astronomy

The Roman calendar
The original Roman calendar is based on the lunar months and years. The Lunar calendar is based on the cycle of the moon phase. The roman calendar is 355 days long with an extra month after February every two years. That extra month is called Mercedinus.
The Roman Calendar.
There are three important days in the roman month, Calends, Nones and ides. Calends is the first day before the first cresent and after the new moon. Nones is the day of the moons first quarter. Ides is the day of the full moon. Calends is the first day of the month. Ides occurs on the 13th or 15th of the month depending of the month. Nones occurs eight days be ides.
Importance of astronomy
To the ancient Romans astronomy was more than just the study of the night sky. It was based on the entire religion. In the night sky their details battled against each other creating the stories that we now call myths.
over 2,000 years ago roman astronomer knew that earth was round. Earth measured in diameter and the distance from the sun. They created an accurate star map with magnitudes, they knew the length of the year to precision of our modern calendar and developed a method for predicting eclipses. Sailors navigated by the stars and some astronomers thought that the earth orbited the sun.
Ancient Roman Astronomy.
By: Alexis & Chantal.

Planets, Sun and Moon
The Romans knew that there were ten bright objects in the sky. The sun, the moon and eight other planets. The Romans named the the planets after their most important gods.
Sun: God of Enlightenment
Moon: God of hunting
Mercury: Messenger of the gods
Venus: God of love
Mars: God of war
Jupiter: King of the gods
Saturn: God of agriculture
Uranus: God of the sky
Neptune: God of the sea
Pluto: God of death
Thank you for watching.
What is the God of Pluto?
What is the God of Neptune?
True or False? The Romans thought that the earth was flat.
What was the Roman calendar based on?
Was the God of Mars the god of love?
Which one is these symbol is Venus?
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