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Star Characteristics
Misc. Stellar Material
Star Life Cycles
Galaxy
Misc.
100
What color represents a star's highest surface temp.
What is blue
100
A H-R diagram shows the relationship between what two characteristics?
What is brightness and temp.
100
Massive stars terminate in a brilliant explosion called a ____.
What is supernova
100
Our galaxy is called the ____.
What is milky way
100
Which main-sequence stars are the most massive (color)?
What is blue
200
9.5 trillion Km =?
What is one light year
200
cloud of gas and dust
What is nebula
200
Another name for the interstellar matter that will eventually form a star is ____.
What is nebula
200
According to the big bang theory, the universe began about ____.
What is 13.7 billion years ago
200
What type of star is our sun
What is medium/ main sequence star
300
Magnitude measures a star's what?
What is brightness
300
4 types of nebulae
What is bright, dark, emission, & reflection
300
When a main-sequence star has exhausted the fuel in its core, it becomes a ____.
What is red giant
300
What object is the largest? (star, planet, globular cluster, or a galaxy)
What is galaxy
300
What will be the final stage in the sun’s life cycle?
What is black dwarf
400
Color of main sequence stars that are the least massive
What is red
400
Light cannot escape the intense gravitational pull of a ____.
What is black hole
400
Which stars are composed of matter in which electrons have combined with protons?
What is neutron stars
400
3 types of galaxies?
What is ireregular, spiral, and elliptical
400
According to Hubble’s law, galaxies are retreating at a speed that is proportional to their ____.
What is distance
500
A star with a surface temperature between 5000 K and 6000 K appears ____.
What is yellow
500
binary stars allow scientists to calculate a star's_______.
What is mass
500
What is the next stage in the sun’s life cycle?
red giant
500
What is the thickness of the milky from it's nucleus in lightyears?
What is 10,000 light years
500
About 60 percent of all known galaxies are classified as ____.
What is elliptical galaxies