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stars-Griffin Knipp-7G
n/a
30
Astronomy
7th Grade
02/27/2013

Additional Astronomy Flashcards

 


 

Cards

Term
conatellations
Definition
a group of stars that forms a pattern in the sky that looks like a framilar object
Term
north star(polaris)
Definition
a star located directly aboce the earths axis
Term
absolute magnitude
Definition
the mesure of how much light a star give off
Term
apperant magnitude
Definition
how much of that sta light is seen on earth
Term
light year
Definition
how far light travels in a year 9.5 trillion km
Term
proxima centari
Definition
the closets star to the sun 4.3 light year away
Term
core
Definition
the center of a star where fusion take place
Term
photosphere
Definition
the third layer of the sun and temptures reach 6,000k
Term
chromosphere
Definition
the layer of the sun aboy the photospere
Term
corona
Definition
the outer most layer of the sun tempatures ar 2 million k
Term
solar eclipse
Definition
when the moon passes beween the arth and the sun
Term
hydrogen fusion
Definition
what creats energy at the suns core
Term
sunspots
Definition
cooler areas on the suns surface that are not permenant
Term
CMEs
Definition
coronal mass ejections-electricaly charge gas are ejected from the corona Disturbs radios and sattilites
Term
solar flare
Definition
when gas on the sun is heated up and shot off the sun
Term
prominence
Definition
a huge arching columns of gas on the suns surface
Term
auroras
Definition
northern lights are when Cmes ionize in earths atmosphere
Term
dwarf stars
Definition
the smallest of stars and they are around the longst
Term
giants
Definition
when a low mass uses all of its helium it becomes a giant
Term
Red supergiant
Definition
when a high mass star uses all of its helium
Term
white dwarf
Definition
when a Red giant collapses it forms a white dwarf. Last stage in a low mass stars evalution
Term
true/false nebulas create stars
Definition
true
Term
black hole
Definition
after a supernova when the star is 3 times bigger than the sun a super nova is created. Its gravity is so strong it traps light
Term
milky way
Definition
the galaxy the solar system is in
Term
galaxy
Definition
a large group of stars gas and dust held together by gravity
Term
h-r diagram
Definition
a diagram to show a stars
Term
true/false the sun is a star
Definition
true
Term
multiple choice the milky way is a____ galaxy?
A. Spiral B. Irregular C. Elliptical D. Nebula
Definition
A. Spiral
Term
true/false a light year is a mesurement of time
Definition
false
Term
multiple choice Cooler spots on the suns surface are
A. Prominence B. Solar Flare C. Sunspot D. CMEs
Definition
C. Sunspot
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