Stars
More Stars
Life cycle of stars
Leftovers
Galaxies and the universe
100
Betelguese and Rigel are part of what constellation? Also, what color are both stars?
What is Orion. Betelguese is a red giant and Rigel is a blue giant.
100
Because the sun is so close to earth, what is its apparent magnitude?
What is -26.8
100
What is the longest stage of a stars life cycle?
What is main sequence
100
Once the sun loses its hydrogen what three objects will it eventually become?
What is red giant, planetary nebula, white dwarf
100
What are the three types of galaxies?
What is spiral, elliptical, and irregular
200
The band of color produced when white light passes through a prism is called what?
What is spectrum
200
What is the difference b/w absolute and apparent magnitude?
What is absolute is as seen from 32.6 light years, apparent is brightness as seen from earth
200
A star that expands and cools once it uses all its hydrogen gas is known as what?
What is a red giant
200
What is the name for a gigantic explosion in which a massive star collapses and throws its outer layers into space?
What is a supernova
200
What is the largest galaxy ever discovered? How many light years across is it?
What is IC 1011, 6 million light years across
300
What is the term for certain wavelengths of light, or colors, given off by hot gases
What is emission lines
300
What is the distance of the North Star from Earth?
What is 431 light years
300
What types of atoms fuse together in order for a star to produce light and heat?
What is hydrogen fuses to helium
300
A star that has collapsed under gravity to the point that the electrons and protons have smashed together to form neutrons is call what?
What is a neutron star
300
What is the name of the theory that states that the universe began with a tremendous explosion 13.7 billion years ago?
What is the big bang theory
400
Because a stars atmosphere absorbs colors of light instead of emitting them, the spectrum of a star is called a what?
What is absorption spectrum
400
What type of star is Polaris in regards to its position above the earth?
What is circumpolar
400
What is the location on the H-R diagram where most stars lie?
What is main sequence
400
A rapidly spinning neutron star that emits rapid pulses of radio waves and optical energy is called what?
What is a pulsar
400
What is the name of the material leftover from the big bang?
What is cosmic background radiation
500
What is the brightest star in the night sky? What is its magnitude?
What is Sirius, its magnitude is -1.4
500
The apparent motion of the sun and the stars is due to what?
What is the earths rotation
500
What lie on the x and y axis in the H-R diagram
What is temperature and absolute magnitude
500
If a star is nearby, some gas or dust from the star will spiral into the black hole and give off what?
What is x-rays
500
Even after the universe becomes cold and dark, what will it continue to do?
What is expand forever
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