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Our Sun is one of the many stars that has been classified as average because its absolute magnitude and its temperature place it on the ____ area of the H-R diagram.
The sun is closer to Earth than the runaway star
A comet
main sequence
star – solar system – galaxy – universe
the surface temperature
a galaxy
The sun is much closer to Earth than other stars are.
The blue star is hotter than the red star.
A satellite detected a small, bright object with a fan-shaped tail. What type of object were astronomers most likely observing?
The sun is closer to Earth than the runaway star
A comet
main sequence
star – solar system – galaxy – universe
the surface temperature
a galaxy
The sun is much closer to Earth than other stars are.
The blue star is hotter than the red star.
A student learns that the sun is classified as a medium-size star and that many stars are much bigger and brighter. However, the student observes that other stars look very dim. Why do other stars look much dimmer than the sun?
The sun is closer to Earth than the runaway star
A comet
main sequence
star – solar system – galaxy – universe
the surface temperature
a galaxy
The sun is much closer to Earth than other stars are.
The blue star is hotter than the red star.
A student is asked to compare the general characteristics of a red star and a blue star. What factual statement can the student make based solely on the color of the two stars?
The sun is closer to Earth than the runaway star
A comet
main sequence
star – solar system – galaxy – universe
the surface temperature
a galaxy
The sun is much closer to Earth than other stars are.
The blue star is hotter than the red star.
Which list is correctly ordered from smallest to largest?
The sun is closer to Earth than the runaway star
A comet
main sequence
star – solar system – galaxy – universe
the surface temperature
a galaxy
The sun is much closer to Earth than other stars are.
The blue star is hotter than the red star.
Stars appear to be blue, white, yellow, and red, even without the aid of a telescope. What causes the different colors of the stars?
The sun is closer to Earth than the runaway star
A comet
main sequence
star – solar system – galaxy – universe
the surface temperature
a galaxy
The sun is much closer to Earth than other stars are.
The blue star is hotter than the red star.
Scientists recently discovered a giant runaway star. It is 90 times larger than the sun and is very hot and blue-white in color. Why does the sun appear to be brighter than this runaway star when viewed from Earth?
The sun is closer to Earth than the runaway star
A comet
main sequence
star – solar system – galaxy – universe
the surface temperature
a galaxy
The sun is much closer to Earth than other stars are.
The blue star is hotter than the red star.
Which of these can be described as a system of stars, gases, dust, and other matter that orbits a common center of gravity?
The sun is closer to Earth than the runaway star
A comet
main sequence
star – solar system – galaxy – universe
the surface temperature
a galaxy
The sun is much closer to Earth than other stars are.
The blue star is hotter than the red star.
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