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32 Cards in this Set

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Small, hot star consisting of a hot, dense core controlling under the force of gravity
white dwarf
actual amount of light a star gives off
absolute magnitude
amount of a star's light observed on Earth
apparent magnitude
apparent shift in position of an object when viewed from different places; used to determine distances
parallax
groups of stars whose positions in the sky seem to change as Earth moves
constellations
classification of about 90% of the stars
main sequence
earliest stage of a star's formation
nebula
large, cool expanding star in which helium fuses to form carbon
giant
distance that light travels in one year
lightyear
relatively cool star that has expanded to more than 700 times as large as our sun
supergiant
star in which only neutrons can exist in its core
neutron star
object so dense that nothing, including light, can escape it.
black hole
dark, cooler areas of the Sun's surface
sunspots
layer of the sun's atmosphere above the photosphere
chromosphere
outer layer and largest part of the Sun's atmosphere
corona
produced from an explosion that occurs when a star's core collapses
supernova
two or more stars revolving around one another
binary system
lowest layer of the Dun'd atmosphere that gives off light
photosphere
large group or stars, gas, and dust held together by gravity.
galaxy
explanation for the beginning of the universe
Big Bang Theory
Is the milky way a spiral galaxy
yes
Is the milky way an elliptical galaxy
no
Is the milky way a member of the Local Group
Yes
Is the milky way 100,000 light-years in diameter
yes
Is the milky way5.8 million light-years from the galaxy Andromeda
no
does the milky way have more than 400 billion stars
no
sequence the colors of stars by temperature labeling the hottest star number one
Blue
Yello
Red
1
2
3
Identify the sequence of the evolution of stars by labeling the stages.
White Dwarf
Main Sequence
Nebula
Giant
4
2
1
3
How is the sun different from other stars? How is the Sun similar?
Our sun is not in a binary system unlike some stars, but it is a main sequence star and is an enormous ball of gas like most stars.
How is the Big Bang Theory supported by the observed Doppler shift of galaxies?
It is supported, because the theory is that the galaxy is also expanding, and the Doppler helps show what is moving away.
How does the Sun produce energy?
Using fusion by hydrogen into helium in its core
How are sunspots, flares, and prominences related?
The intense magnetic fields associated with sun spots might cause prominences, which are huge, arching columns of gas