1 / 26

Astronomy I study Guide

Astronomy I study Guide. Number 1. Movement of one object around another. 365 and ¼ days. Number 2. Movement on the object’s axis 24 hours. Number 3. Earth revolves around the Sun and the Moon revolves around the Earth. Number 4.

jael-benson
Download Presentation

Astronomy I study Guide

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Astronomy I study Guide

  2. Number 1 • Movement of one object around another. • 365 and ¼ days

  3. Number 2 • Movement on the object’s axis • 24 hours

  4. Number 3 • Earth revolves around the Sun and the Moon revolves around the Earth

  5. Number 4 • Rotation on Earth’s Axis. The side facing the sun is day, the side facing away is night.

  6. Number 5 • The Earth’s Axis is tilted 23.5°

  7. Number 6 • Because of Earth's tilt on it’s axis. Tilted toward the sun= summer. Tilted away from the sun= winter. Neither=fall or spring

  8. Number 7 • The Equator gets the most direct sunlight all year long

  9. Number 8 • Vernal Equinox and Autumnal Equinox both have 12 hours of daylight and 12 hours of night. (equal day and night)

  10. Number 9 • Summer. The summer solstice is the longest day of the year. It has more daylight than night.

  11. Number 10 • Winter. The winter solstice is the shortest day of the year. It has less daylight hours and more night hours.

  12. Number 11 • If the Earth was not tilted, we would not have seasons. It would be the same season all year long, because we would get the same amount of sunlight all year long.

  13. Number 12 and 13 • Northern Hemisphere Tilted toward= Summer Tilted away= Winter

  14. Number 14 • Equinox translates to “equal night” meaning there is 12 hours of daylight and 12 hours of night. Twice a year, Autumnal Equinox and Vernal Equinox

  15. Number 15 • The winter solstice is the shortest day of the year. It has less daylight hours and more night hours.

  16. Number 16 • The phase of the moon you see depends on how much of the sunlit side of the moon faces the Earth

  17. Number 17 • We see different phases because the moon revolves around the Earth. As it revolves we see different parts of the sunlight side.

  18. Number 18 • If you are looking at half of the moon in the sky you are seeing a “quarter moon”

  19. Number 19 • From the new moon to the full moon, the phases get bigger a little at a time. (waxing means getting bigger)

  20. Number 20 • Lunar eclipse can only happen during full moons, the Earth blocks the moon from the sun.

  21. Number 21 • Solar Eclipse can only happen during New Moons. The moon blocks the sun from the Earth.

  22. Extra info • Because the Moon’s rotation and revolution takes about the same time (28 days). We only see one side of the moon. • It takes between 27-28 Earth days for the Moon to revolve around the Earth. • One week after a New Moon = 1st Quarter • Two weeks after a New Moon = Full Moon • Three weeks after a New Moon = 3rd Quarter • Four weeks after a New Moon= another New Moon

  23. Number 22 Solar Eclipse Lunar Eclipse

  24. Number 23

  25. Number 24 • A ball spinning. A person spinning. Anything spinning. Rotation = spinning on Earth’s axis.

  26. Number 25

More Related