Astronomy Vocab

1. Astronomy Vocab Review

2. The study of the moon, stars, and other objects in space. Astronomy Astronomy

3. The imaginary line that passes through the Earth’s center and the North and South poles. Axis Astronomy

4. Earth’s spinning on its axis. rotation Astronomy

5. The movement of one object around another object. revolution ASTRONOMY

6. Earth’s path as it revolves around the sun orbit Astronomy

7. The distance north or south from, the equator, measured in degrees latitude Astronomy

8. The two days of the year on which the noon sun is directly overhead at either 23.5 degrees South or 23.5 degrees North solstice Astronomy

9. The two days of the year on which neither hemisphere is tilted toward or away from the sun. equinox Astronomy

10. The day of the year that marks the beginning of spring in the Northern Hemisphere. Vernal equinox Astronomy

11. The day of the year that marks the beginning of fall in the Northern Hemisphere. autumnal equinox Astronomy

12. One of the different shapes of the moon as seen from Earth. Phase Astronomy

13. The partial or total blocking of one object by another eclipse Astronomy

14. The blocking of sunlight to Earth that occurs when the moon is between the sun and Earth. solar eclipse Astronomy

15. the darkest part of a shadow umbra Astronomy

16. The part of a shadow that surrounding the darkest part penumbra Astronomy

17. The blocking of sunlight to the moon that occurs when Earth is dirrectly between the sun and moon. lunar eclipse Astronomy

18. The daily rise and fall of Earth’s waters on the shores tide Astronomy

19. The attractive force between two objects gravity Astronomy

20. any object that revolves around another object in space satellite Astronomy

21. A description of the solar system in which all of the planets revolve around geocentric Astronomy

22. a description of the solar system in which all the planets revolve around the sun heliocentric Astronomy

23. An elongated circle, or a oval shape; the shape of the planets orbits ellipse Astronomy

24. The tendency of a moving object to continue in a straight line or a stationary object to remain in place inertia Astronomy

25. The name given the four inner planets; Mercury, Venus, Earth, and Mars. Terrestrial planet Astronomy

26. The spinning motion of a planet from east to west, opposite to the direction of rotation of most planets and moons Retrograde motion Astronomy

27. The progress by which heat is trapped in the atmosphere by water vapor, carbon dioxide, methane, and other gases that form a “blanket” around Earth Greenhouse effect Astronomy

28. The name given to the first four outer planets; Jupiter, Saturn, Uranus, and Neptune gas giant Astronomy

29. Life that arises outside of Earth extraterrestrial life Astronomy

30. Chunks of ice and dust whose orbits are usually very long, narrow ellipses comet Astronomy

31. A chunk of rock that is in orbit around that sun asteroid Astronomy

32. Many asteroids that are in orbit between the planets of Mars and Jupiter asteroid belt Astronomy

33. A chunk of rock or dust in space meteoroid Astronomy

34. A meteoroid that enters Earth’s atmosphere and burns up due to friction. meteor Astronomy

35. A meteor that hits that Earth’s surface meteorite Astronomy