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8th SMS Astronomy 3
Chapter 3 Section 1, 2, 3 VOCAB (Astronomy)
| Question | Answer |
|---|---|
| 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
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