Chapter 26 Flashcards
How long it takes the earth to travel around the sun?
Each complete revolution of Earth around the sun takes 365 1/4 days, or about one year.
How often the earth competes one rotation?
Each complete rotate of Earth takes about one day.
Every 4 years an extra day is added to what month?
February
What scientist that study the universe are known as?
Astronomers
Who added the day of the fourth day of …( who added leap year?)
Julius Caesar
Who provided evidence of earth’s rotation with a pendulum?
Jean-Bernard-Lean Foucault
What is a point in a planet’s orbit that is farthest from the sun
Aphelion
- a collection of stars, dust, and gas bound together by gravity
Galaxy
- the scientific study of the universe
Astronomy
- all of the frequencies or wavelength of electromagnetic radiation.
Electromagnetic spectrum
- The path that a body follows as it travels around another body
Orbit
- The rotation of Earth causes ocean currents and wind belts to curve to the left or right.
Corals affect
- the spin of a body on its axis
Rotation
- a telescope that uses a curved mirror to gather and focus light from distant objects
Reflection telescope
- system created for measuring long intervals of time by dividing time into periods of days, weeks, months, and years.
Calendar
- the motion of a body that travels around another body in space
Revolution
- group of stars that are organized in a recognizable pattern.
Consolation
- the spin of a body on its axis
Rotation
Who invented the refraction telescope?
Hans Lippershey
