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pages 12-15
Chapter One section 2
7
Science
7th Grade
09/20/2010

Additional Science Flashcards

 


 

Cards

Term
Right ascension
Definition
a measure of how far east something is from the point where the sun appears on the first day of spring.
Term
Declination
Definition
a measure of degrees north or south of the celestial equator.
Term
Celestial equator
Definition
an imaginary circle made by extending Earth's equator into space.
Term
Constellation
Definition
a section of the sky that contains star patterns
Term
Ecliptic
Definition
the path the sun takes across the celestial sphere each year (seen from Earth)
Term
Light-year
Definition
a measurement equal to the distance that light travels through space in one year.
Term
altitude
Definition
the angle between the object and the horizon.
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