science stars part 2
It's about stars
| created: | 3 months ago by vbsweetie | tags: | science |
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tens to hundreds times larger & more luminous than the sun |
giant stars |
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hundreds time larger than the sun & thousands times brighter |
super giant |
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the distance light travels in 1 year |
light year |
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reguarlly change in magnitude, brightness |
variable stars |
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means new |
nova |
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what forms when an existing star suddenly flares up and becomes hundreds or thousands time brighter |
nova |
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not common and must be seen by a telescope |
nova |
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they spew gasses and dust into space |
novas |
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death explosion of a star |
super nova |
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cloud of gasses |
nebula |
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occurs when some supergiant collapses |
neutron stars |
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when a supergiant runs out of fuel "disappears" |
black hole |
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force is so great the core cannot stop collapsing |
gravitational |
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a group of stars that seem to form a pattern |
constallations |
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there are ... official constellations |
88 |
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common constellations |
Leo the lion, Draco the dragon, the Great Bear, Orion the Hunter |
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... constellations are constellations that revolve around the |
circumpolar, North Star |
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was the first person to make scientific discoveries with the telescope |
Galiloe |
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telescope that bends light to make object bigger |
refracting telescope |
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reflects light to make object seem |
reflecting telescope |
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a device to aid in observing objects that are far away |
telescopes |
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telescopes invented by |
Sir Isaac Newton |
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problems with telescopes on Earth |
have to look through thousands of meter of the Earth's atmosphere that is constantly caring dust |
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a telescope that stays right above the Earth's atmosphere all the time |
Hubble Space Telescopes (HST) |
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it collects radio waves from space |
radio telescopes |
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breaks down a stars light into all it's colors |
spectroscope |
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provides info about ... and ..... (what it is made out of) |
temp,composition |
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shows all heavenly bodies are |
moving |
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open group of stars |
star clusters |
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hundreds to thousands of stars in no certain arrangement |
open cluster |
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thousands to millions arranged in the shape of a ball |
globular cluster |
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star system of millions or billions of stars and covers light years of space |
galaxy |
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our ... is dependent on the sun |
survival |
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different shapes of galaxy ours is |
spiral |
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the star of our solar system |
the sun |
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the sun gives |
heat,light,temp,climate |
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inner parts where gasses move from |
core |
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bumpy surface |
photosphere |
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the sun's atmosphere |
chromosphere |
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our galaxy has about 300 billion stars |
milky way |
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outer most part often called "the crown" |
corana |
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huge mass has a strong .... that keeps the planets in orbit |
gravitational pull |
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earth rotates on an .... an imaginary line around which a planet rotates, or turns |
axis |
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each complete rotation is ... day |
1 |
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axis is titled ....... degrees |
23 and a half |
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until recently there has been ... planets |
9 |