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PhillipHeflin
Stars
15
Astronomy
7th Grade
02/22/2013

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Cards

Term
Constellations
Definition
Patterns of Stars
Term
Absolut magnitude
Definition
The measure of a star of the amount of light it gives off
Term
Apparent magnitude
Definition
A measure of light recieved by the star on Earth
Term
Light-year
Definition
Distance that light travels in one year
Term
Photosphere
Definition
The surface of the sun
Term
Chromosphere
Definition
The layer that extrends upward about 2,000 km above the photosphere
Term
Corona
Definition
Largest layer of the Sun's atmosphere
Term
Sunspots
Definition
Areas of the Sun's surface that appear darker because they are cooler then surrounding areas
Term
Giant
Definition
Final stage of a star
Term
White dwarf
Definition
The hot dense core left from a Giant. About the size of Earth
Term
Supergiant
Definition
, when heavier elements form by fusions, it expands into a supergiant
Term
Neutron Star
Definition
A shrunken supernova where only neutrons exist in the core
Term
Black hole
Definition
The core of a supernove that collapses where light cannot escape
Term
Galaxy
Definition
A large group of stars, gas, and dust held together by gravity
Term
Big bang theory
Definition
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