Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Brechbill ch 13

Stars and Galaxies Vocab

TermDefinition
chromosphere layer of the sun's atmosphere above the photosphere; color
Polaris the north star
Proxima Centauri next closest star to earth after the sun
Sirius brightest star in the night sky
circumpolar stars and constellations that seem to go around Polaris
constellation group of stars that form a pattern in the sky
apparent magnitude measure of the amount of light received by earth from a star; how bright it looks
absolute magnitude measure of the amount of light a star actually gives off; as if they were all the same distance away
nebula spinning cloud of dust and gas; the birth place of stars
black hole final stage of a massive star; gravity is so strong, not even light can escape
light year unit representing how far light travels in one year; used to record astronomical distances
white dwarf late stage of a low mass or main sequence star; outer layers escape leaving behind a HOT, DENSE CORE
super giant late stage of a massive star; stars core heats up and expands, leading to a supernova
Red Shift proves that stars and galaxies are moving away from earth because the wavelengths of light are stretched to the red end of the spectrum
Big Bang Theory states that 13.7 billion years ago, the universe began with a huge fiery explosion.
galaxy large group of stars, dust, and gasses held together by gravity; elliptical, spiral, or irregular
neutron star collapsed core of a supernova that contains only neutrons in its dense core
red giant late stage of a low mass or main sequence star; outer layers expand and cool; late stage of the sun
main sequence 90% of stars that are burning the hydrogen in their core; middle-aged stars; diagonal band on the HR diagram
convection zone circulation of gases in an area inside the sun
photosphere lowest layer of the sun's atmosphere; sometimes referred to as the surface of the sun; gives of LIGHT
corona outermost, largest layer of the sun's atmosphere; can be seen during a total solar eclipse
sunspot areas on the surface of the sun that are cooler and less bright.
Created by: brechbillc
Popular Science sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards