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Sun-earth- moon
| Term | Definition |
|---|---|
| Satellite | A satellite is a body that obits a planet. |
| Star | A star is a giant ball of superheated gas, or plasma composed of hydrogen and helium. |
| Planet | A planet is an object that obits the sun is large enough to have become rounded by its own gravity, and has cleared the area of its orbit the sun. |
| Meteor | A metor is a streak of light produced when a small piece of rock or ice. |
| Comet | A comet is a cold mixture of dust and ice that develops a long trail of light. |
| Constellation | A constellation is |
| Geocentric | |
| Heliocentric | |
| Ellipse | |
| Equinox | |
| Phase | Different shapes of the moon you see. |
| Solar eclipse | When the moon passes directly between the earth and sun during a new moon. |
| Lunar eclipse | Occurs during a full moon when earth is directly between the moon and sun |
| Umbra | Darkest part of a shadow where light is partially blocked |
| Tide | Daily rise and fall of ocean water |
| Spring tide | Higher high tides during full and new moons |
| Neap tide | Lower high tides during the first and third quarters moons |
| Maria | Dark smooth lava covered areas on the moon |
| Highlands | Higher lighter areas on the moon covered with craters |