Space Flashcards
What is Cosmology?
Cosmology is the study of the formation of the universe
What is Astronomy?
The science that deals with the universe beyond earths atmosphere
Where/When did Astrology begin?
It began 5000 years ago in New Grange, Co.Meath
What is a celestial body?
Any naturally made object outside the earths atmosphere
What is a star?
A celestial body that generates its own light and heat
What are stars?
Stars are a mass of gas ( hydrogen and helium) held together by its own gravity
What are the temperatures of stars?
10,000,000C to 3,000,000,000C
How can a star generate its own heat and energy?
It can generate its own heat and energy because nuclear fusion is happening inside it
What is the star sizes range?
118,000km to 2 million km wide
What is the earths radius
6,371km is earths radius
What is the largest celestial body in our galaxy?
The sun is
What is a planet?
A planet is a celestial body that orbits a star. It has enough mass to form an almost round shape due to its own gravity and has cleared the region.
How many planets are in our solar system?
8
What is in the center of the solar system?
The sun
What is the memory key for the names of the planets?
My Very Educated Mother Just Served Us Noodles
What does it mean to clear the region?
Clearing the region means that is easily the largest celestial object in the region it orbits
Name 3 facts about Mercury.
- Named after the Messenger of the Greeks
- 4,880m diameter
- It is shrinking
Name 3 facts about Venus.
1.Hottest planet
2. Reflects 70% of all light
3. Houses bacteria
2 Facts about Earth
- Only planet in the Universe to have surface water
- 3rd planet from the sun
Name 2 facts about Mars
- It houses the biggest volcano in the Solar System
- Iron Crust ( +O2 ) = Rust = Red Colour
Name 2 facts about Jupiter
- The most important planet in our Solar system
- The first planet ever
2 facts about Saturn
- It is lighter than water
- 10x as wide as Earth
List 2 facts about Uranus
- It is the coldest planet in our solar system ( -223C )
- 37 moons
List 2 facts about Neptune:
1: Winds get up to speeds of 1900km/hr
2. 165 years to orbit the sun