The Sun
H-R Diagram
Evolution of Stars
Characteristics of Stars
Potpourri
100
This a dark spot on the surface of the Sun.
What is a sunspot?
100
On the H-R Diagram, this large group of stars can be found in the middle, running diagonally across the diagram.
What is the main sequence?
100
All stars begin as this.
What is a nebula?
100
This is the total brightness of a star.
What is the absolute magnitude?
100
This is the solar system's largest planet.
What is Jupiter?
200
This is the center of the Sun.
What is the core?
200
The hottest stars can be found on the left side of the diagram and are this color.
What is blue?
200
Once fusing all of it's hydrogen, a low-mass main sequence star becomes this.
What is a red giant?
200
This is a bright light on the surface of the sun.
What is a solar flare?
200
This is the spinning of Earth on it's axis.
What is rotation?
300
This is the outermost layer of the Sun's atmosphere.
What is the corona?
300
Because of their large size and relative coolness, these stars can be found in the upper right corner of the diagram.
What are red giants?
300
Once a red supergiant becomes unstable, it explodes in a spectacular stellar explosion known as this.
What is a supernova?
300
This is a large, bright, gaseous feature extending outward from the Sun's surface, often in a loop shape.
What is a prominence?
300
This is rock particles combined with frozen gases, such as water, methane, and ammonia.
What is a comet?
400
This is the innermost layer of the Sun's atmosphere.
What is the photosphere?
400
The smallest stars can be found towards the bottom of the diagram and are called this.
What is dwarves?
400
This is the reason black holes don't appear on the H-R Diagram.
What is they are not stars?
400
This is the the total amount of light from a star that is received on Earth.
What is the apparent magnitude?
400
This is the imaginary vertical line around which the Earth spins.
What is axis?
500
This is the middle layer of the Sun's atmosphere.
What is the chromosphere?
500
Because of their high temperatures and small size, these stars can be found at the bottom of the diagram, closer to the left.
What are white dwarfs?
500
This is the sequence, in order, of the evolution of a star like our sun, from formation until death.
What is nebula, low-mass main sequence, red giant, white dwarf?
500
This is a region of spacetime having a gravitational field so intense that no matter, not even light, can escape.
What is a black hole?
500
This is the event that occurs when the Sun reaches it's greatest distance north or south of the equator.
What is solstice?
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