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