Astronomy Review Unit 1

2. The time to orbit another body
7. Applied geometry to the motion of the celestial sphere, able to predict the motion of the planets and when solar and lunar eclipses would
9. an imaginary plane connecting the earth and sun that the Earth moves through
10. Built Temple of Karnak, created 24-hour day, created the first clocks
12. the point on the celestial sphere that is directly overhead at night
14. eclipse that happens during a full moon
17. Measured the circumference of the Earth
19. Made position measurements of over 1000 stars, the sun, moon, and planets
21. Movement of a body on an axis
22. built Newgrange
23. tide that happens during the first and third quarter moons
24. The study of celestial bodies to determine and predict their movements and patters
26. eclipse that happens during a new moon

1. the line on the celestial sphere where the sky meets the Earth
3. used Hipparchus’s measurements to make tables and predict the future position of the planets
4. built Stonehenge, Kept track of the summer and winter solstice for agricultural and religious purposes
5. The solar day that measures one complete 360 rotation of the Earth
6. A group of stars that appear to make a pattern or draw a picture in the celestial sphere.
8. Built Machu Pichu, Kept detailed records of the stars for agricultural purposes
11. Built Chichin Itza, calendar based on the movements of the sun, moon, and Venus, calendar ended in 2012
13. created the most accurate map of stars available until the 1500’s, named thousands of stars, created accurate instruments
15. created a calendar based off moon phases
16. The study of celestial bodies to determine omens (pseudoscience)
18. tide that happens during full and new moons
20. created the first zodiac
25. The solar day that is from noon to noon. 4 seconds longer