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astronomy*

all the stuff bout astronomy..well kinda

QuestionAnswer
What is the first step of the birth of a star? nebula-cloud of gas and dust
Whats the second step of the birth of a star? gas and dust clump together due to gravity (shock waves from a supernova explosion)
whats the 3rd step to the birth of a star? gas and dust pulll together into a ball (attracts more particles)becomes hotter and hotter til it glows
whats the 4th step to the birth of a star? grows hotter and hotter for mills of yrs until the star is made
What are the things that a sunlike star turns into in the process of dieing? sun like star->red giant->planetary nebula->white dwarf->black dwarf
how many times larger is a huge star to a sun like star? 1.5-3 times larger
whats the sequence of a huge stars death? huge star->red supergiant->supernova->nuetron star
whats the sequence of a giant star? giant star->blue or red supergiant->supernova->black hole(light cant escape gravitys pull)
whats an asteroid? chuncks of rock in space that never became part of a planet
whats a meteoroid? a small asteroid
whats a meteor? meterooid thats in the earths atmosphere..leaves a streak in the sky
whats a comet? chunks of rock and ice w/ two tails
what are the tails of a comet called? ion and dust
what is a galaxy? a large group of stars , gas and dust held together by gravity
what are some things about galaxies? hav several mill to trill stars & range from 11thousand-hundred thousands of lite years
what are the three types of galaxies? spiral,elliptical and irregular
What are some characteristics of spiral galaxies? spiral arms,milky way is one, normal or barred,20% of galaxies are spiral
what are some characterisitics of elliptical galaxies? football shaped, oval shaped,most common galaxy, 60% of galaxies,elipse shaped,old,not much gas and dust
what are some characteristics of an irregular galaxy? smaller,20%, lots of gas and dust,new stars lots forming
what are the types of stars? red giant & supergiatns,main sequence,blue supergiants and white dwarfs
Created by: VaLeRiA!
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