Chapter 19 Vocab 2
Terms
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- The system composed of the sun and the planets and other bodies that travel around the sun.
- Solar System
- Mixture of gas and dust that forms a huge cloud and is primarily made of hydrogen and helium
- Nebula
- Building Blocks of planets.
- planetesimals
- Spining on axis
- Rotation
- A path something Takes
- Orbit
- the elliptical motion of a body as it orbits another body in space
- Revolution
- A closed curve in which the sum of the distances from the edge of the curve to two poins inside the ellipse is always the same
- Ellipse
- The sun's Outer atmosphere
- Corona
- The center of the sun where the sun's energy is produced.
- Core
- A thin region of the suns atmosphere between the corona and the photosphere.
- Chromosphere
- The layer of the sun at which the gasses get thick enough to see; the surface of the sun
- photosphere
- An area on the photosphere of the sun that is cooler than surrounding areas.
- sunspots
- Giant storms on the surface of the sun
- Solar Flares
- A region of the sun where gasses circulate in convection currents.
- Convection zone
- Very dense region that takes light million of years to pass through on the sun.
- Radiation zone