Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

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.

Remove ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

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

8th SMS Astronomy 3

Chapter 3 Section 1, 2, 3 VOCAB (Astronomy)

Constellation Pattern of stars
Visible Light (3-1) Electromagnetic radiation seen by the unaided eye
Electromagnetic Radiation (3-1) Energy traveling through space in the form of waves
Wavelength (3-1) Distance between the crests of two waves
Spectrum (3-1) Range of wavelengths of electromagnetic waves
Refracting Telescope (3-1) Telescope that uses convex lenses to gather and focus light
Convex Lens (3-1) Piece of transparent glass that's curved, making the middle thicker than the edges
Reflecting Telescope (3-1) Telescope with one or more mirrors that gather light
Radio Telescope (3-1) Device used to detect radio waves from objects in space
Observatory (3-1) Building that contains one or more telescopes
Spectrograph (3-1) Instrument that separates light into colors and photographs the resulting spectrum
Galaxy (3-2) Giant structure that contains hundreds of billions of stars (ours is called the "Milky Way")
Universe (3-2) All of space and everything in it
Light-Year (3-2) Distance that light travels in one year
Parralax (3-2) Apparent change of an object's position when seen from different place
Giant Star (3-2) A very large star, much larger than the sun
Apparent Magnitude (3-2) Brightness of a star "as seen fron Earth"
Absolute Magnitude (3-2) Brightness of a star "if it were a standard distance from Earth"
Hertzsprung-Russell Diagram (3-2) A graph relating the temperature and brightness of stars
Main Sequence (3-2) Area on the Hertzprung-Russell diagram from upper left to lower right that includes more than 90 percent of all stars
Pulsar (3-3) Neutron star that pruduces radio waves
Nebular (3-3) Large amount of gas and dust in space, spread out in an immense volume
Protostar (3-3) Contracting cloud of gas and dust; "the earliest stage of a star's life"
White Dwarf (3-3) The remaining hot core of a star after its outer layers have expanded and drifted out into space
Supernova (3-3) The explosion of a dying giant or supergiant star
Neutron Star (3-3) A tiny star that remains after a supernova explosion
Black Hole (3-3) The remains of an extremely massive star pulled into a small volume by the force of gravity
Quasar (3-3) distant galaxy with a black hole at its center
Binary Star (3-4) Star system that contains two stars
Eclipsing Binary (3-4) Star system where one star periodically blocks the light from another star
Spiral Galaxy (3-4) Galaxy with arms curve outward in a pinwheel pattern
Elliptical Galaxy (3-4) Galaxy shaped like a flattened ball, containing only old stars
Irregular Galaxy (3-4) Galaxy that does not have a regular shape
Created by: SimardRR