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Chapter 22
Space Vocab.
| Term | Definition |
|---|---|
| Light-Year | The distance light travels in one year |
| Black Hole | An object whose gravity is so strong that nothing, not even light, can escape. |
| Convection | Heat transfer in a gas or liquid by the circulation of currents from one region to another |
| Corona | The outer layer of the sun's atmosphere. |
| Doppler Effect | An observed change in the frequency of a wave when the source or observer is moving |
| Fusion | Creation of energy by joining the nuclei of two hydrogen atoms to form helium. |
| Main Sequence | the stage in which stars produce energy through the fusion of hydrogen into helium |
| Nebula | a large cloud of dust and gas that can break apart into smaller pieces and form stars |
| Neutron Stars | may occur when a supergiant collapses to a very dense core |
| Parallax | An apparent shift in the position of an object when viewed from different locations |
| Solar Wind | A stream of electrically charged particles produced by the sun's corona |
| Sunspot | a cooler darker spot appearing periodically on the sun's photosphere |
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joshua_zeilman