Stars 2
Terms
undefined, object
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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