Vocabulary
What is a protostar?
A protostar is the first stage of a stars life.
What is the definition of a spiral galaxy?
Spiral galaxies have arms of stars around a central bulge.
What is the main sequence?
The main sequence is where most of the suns fall on the H-R diagram.
What is the corona.
The corona is the outer atmosphere of the Sun.
What is a neutron star.
Any of a class of extremely dense, compact stars thought to be composed primarily of neutrons.
What is a nebula?
A cloud of gas and dust in outer space.
What is the definition of a elliptical galaxy?
Elliptical galaxies are group of stars in a oval shape.
What are blue giants?
Blue giants are the hottest suns.
What is a core?
The core is the center of the sun.
what is a nuclear fusion?
When two or more lightweight atoms join together to form one heavier nucleus.
What is a black hole?
Where gravity is so strong that not even light can escape.
What is a irregular galaxy?
Irregular galaxies are galaxies that don't fit in with the elliptical galaxies and spiral galaxies.
What are red giants?
Red giants are the second hottest suns
What are sunspots?
Sunspots are black spots on the outside lay of the sun.
What is a constellation?
A constellation is a group of stars that make a picture in the sky.
where does a supernova happen?
A supernova happens where there is a change in the core, or center, of a star.
What is the milky way?
The milky way is a spiral galaxy and is the galaxy that we are in.
What is a white dwarf?
A white dwarf is a low mass star out of fuel.
what is the chromosphere?
The chromosphere is the lower region of the Sun's atmosphere.
What is absolute magnitude?
How bright a star looks compared to other stars.
What is a black dwarf?
A very small and cooled remaining of the white dwarf that gives no light.
What a star system?
A small number of stars which orbit each other, because of gravitational attraction.
What is luminosity?
The amount of energy or light that a star gives from its surface.
What is the photosphere?
The photosphere is the deepest layer of the Sun that we can observe directly.
What is apparent magnitude?
How bright a star looks from earth.