stars
The color of coolest star
What is red?
90% of stars are this type
What is main sequence?
The type name of the galaxy where you live
What is the milky way?
outer layer of the sun
What is the corona?
most accepted theory of how the universe formed
What is the big bang theory?
stars that form patterns
distance to nearby stars is measured is measured using this
What is parallax
The first artificial satellite to orbit Earth
What is sputnik?
Layer of sun we see on Earth
What is the photosphere?
how we know the sun is rotating
What are sunspots?
cloud of dust and gas where stars form
nebula
region so dense not even light can escape
What is a black hole?
Oval shaped galaxy
What is an elliptical galaxy?
Where the sun's energy is produced
What is the core?
Most dense layer of the sun
What is the core?
two stars revolving around each other
what a main sequence star becomes after it uses up the hydrogen in its core
What is a red giant?
First U.S. Satellite launched by the United States
What is Explorer 1?
Dark cool areas on the photosphere
What are sunspots?
type of star of the sun
What is main sequence?
The measure of amount of light received on Earth
What is apparent magnitude?
The explosion of a star
What is a supernova?
The first manned mission to land on the moon
What is Apollo 11?
The source of the sun's energy (process where hydrogen is changed to helium)
What is fusion?
Objects moving away from Earth are going through a ___shift
What is red?