Stars
What are stars?
Hot, dense, luminous balls of gas
When were constellations first recorded?
3000 BCE
What is a constellation?
A group of stars that make a pattern
Why do stars appear to move?
Because of the stars' location and the rotation of the earth
What is the name of the book the classic constellations were recorded in?
The Almagest
What's a constellation that always appears in the Northern Hemisphere?
Draco
Stars and Constellations get their names from what cultures?
Middle Eastern, Greek, and Roman
When was the official number of constellations announced?
1930
What's a constellation that always appears in the Southern Hemisphere?
Crux
What does circumpolar mean?
When an object doesn't set below the horizon
What purpose did constellations serve?
To keep the time between harvest, time of the year.
What's a constellation that appears in both hemispheres?
Orion
What is the ecliptic?
A circular path that the stars and planets appear to follow as the Earth rotates
When was the Babylonian system of constellations established?
In the early Bronze Ages
What is the zodiac?
A belt of constellations on the ecliptic plane