Vocabulary #1

3. used to locate stars similar to latitude and longitude
5. A scale that tells the brightness of a star. Can be absolute or apparent
7. the apparent path of the Sun across the celestial sphere over the course of the year
10. a model of the universe that puts the Sun at the center and everything else in circular orbits around it.
14. a grouping of stars that form a recognizable pattern that is part of a constellation but not the whole constellation. An example is the Big Dipper
15. Magnitude The brightness of a star as measured on Earth.
16. a model of the universe that puts the Earth at the center and everything else in circular orbits around it.

1. the total energy output of a star
2. either the highest point along an arc or the point directly over your head
4. a method to determine the distance to a star by making two measurements of a star’s location as far apart as possible.
6. part of the geocentric model used to explain retrograde motion.
8. a grouping of stars that form a recognizable pattern created by humans
9. motion where a planet appears to change direction and travel backwards
11. all space, time, matter and energy
12. Sphere Imaginary sphere surrounding Earth where the stars are attached
13. the 12 constellations on the celestial sphere through which the sun appears to pass through over the course of the year