How bright a star looks from earth depends on what 2 factors?
How far away the star is and its brightness
200
What is the color of the hottest stars?
Blue
300
What is a Stellar Nebula made of?
clouds of gas and dust and forms a center of gravity
300
What are the dark spots on the surface of the sun called?
Sunspots
300
What are the three energy emissions given off from a solar flare?
X-rays, radio waves, UV rays
300
What are 2 ways the stars brightness can be described?
Apparent and absolute
300
What is the most followed theory of the origin of the universe?
The Big Bang Theory
400
About how long does our sun or stars like our sun live?
10 billion years
400
What is the gas layer just above the surface of the sun called?
Chromosphere
400
When are solar flares most intense and frequent?
At the start of a 11 year cycle where there is a maximum amount of sunspots
400
What are the five characteristics that are used to tell difference between stars?
Temperature, Size, Mass, Brightness and Color
400
What is the name of our galaxy?
Milky Way Galaxy
500
What is the last 2 death stages from a blue giant?
Neutron star and black hole
500
Why are sunspots dark?
The temperature of the sunspots is about 1500K less than the rest of the surrounding. Giving it the appearance of being dark compared to rest of sun's surface
500
What is the amount of energy being released through Nuclear Fusion?