Ch 4 Stars, Galaxies, and the Universe

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Can you name the Ch 4 Stars, Galaxies, and the Universe Key Terms?

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DefinitionTerm
Do supernovas form from high mass stars or low mass stars?
When the dim star blocks light from the bright star in a binary star
Type of galaxy that is shaped like a stretched out ball
Do black holes form from high mass stars or low mass stars?
If a star is blue, is it hot or cool?
Type of star cluster that is loosely packed with only a few thousand stars
Brightess as seen from the same distance (actual brightness)
Do supergiants form from high mass stars or low mass stars?
Star systems that have two stars
Brightness as seen from Earth
Matter that does not give off electromagnetic radiation
Which stars live longer lives: high mass stars or low mass stars?
Group of two or more stars
Scientific notation uses powers of this number to write very large or very small numbers
The diagonal area of stars on the Hertzsprung-Russell diagram
Type of star cluster that is tightly packed with over a million stars
Explosion that created our universe
Unknown force that is causing the universe to expand
Small asteroid-like and comet-like bodies that collided to form the planets
Type of galaxy with a bulge in the middle and arms that spiral outward
The distance that light travels in one year
If a star is red, is it hot or cool?
DefinitionTerm
Do neutron stars form from high mass stars or low mass stars?
How long a star lives depends on its _______.
Huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity
The galaxy that our solar system is located in
Large cloud of gas and dust that formed our solar system
Leftover thermal (heat) energy from the big bang
Do red giants form from high mass stars or low mass stars?
Type of galaxy that does not have a regular shape
An object with gravity so strong that nothing, not even light, can escape
Very large groupings of stars
True or false: Our sun is a medium-sized star.
True or false: The universe is about 13.7 billion years old.
The brightness of a star depends upon both its size and ___________.
Does a planetary nebula form from high mass stars or low mass stars?
The apparent change in position of an object when you look at it from different places.
Large cloud of gas and dust from which stars form
Astronomer who stated that the farther away a galaxy is, the faster it is moving away from us (last name only)
The explosion of a supergiant
The blue-white core of a star that is left behind and cools becomes a ________.
A protostar becomes a star when _________ begins.
A contracting cloud of gas and dust with enough mass to form a star
Do white dwarves form from high mass stars or low mass stars?

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