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Chapter 27
| Term | Definition |
|---|---|
| electromagnetic spectrum | all types of electromagnetic radiation arranged according to wavelength and frequency |
| refracting telescope | type of telescopethat used lenses to bring visible light to a focus |
| reflecting telescope | type of telescope that uses mirrors to bring visible light to a focus |
| interterometry | technique that uses the images from seversl telescopes to produce a single image |
| albedo | the percentage of incoming sunlight that its surface reflects |
| highland | heavily crated regions of the Moonthat are light in colors and mountainous |
| mare | |
| impact crater | the craters on the Moon |
| ejecta | material that falls back to the lunar surface after being blasted out by the impact of a space object |
| `ray | vivble as light-colored streaks |
| rille | meandering, valleylike structures that might becollapsed lava tubes |
| regolith | a layer of loose, ground-up rock |
| ecliptic plane | the plane of Earth's orbit |
| solstice | when the Sun is overhead at its farthest distance either north or south of the equator |
| equinox | time of the year during which Earth's axis is at a 90 degrees angle to the Sun |
| synchronous rotation | the state at which its orbital and rotational periods are equal |
| solar eclipse | when the Moon passes directly between the Sun and Earth and blocks the Sun from view |
| perigee | the closest point in the Moon's orbit to Earth |
| apogee | the farthest point in the Moon's orbit |
| lunar eclipse | when the Moon passes through Earth's shadow |
Created by:
spjaco
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