8 5 lunar phases
This presentation is the property of its rightful owner.
Sponsored Links
1 / 20

8.5 Lunar Phases PowerPoint PPT Presentation


  • 41 Views
  • Uploaded on
  • Presentation posted in: General

8.5 Lunar Phases. Unit 8: Astronomy. Vocabulary. apogee : point at which the moon is farthest from the earth. Vocabulary. apogee : point at which the moon is farthest from the earth crescent: phase when less than half the moon is visible. Vocabulary.

Download Presentation

8.5 Lunar Phases

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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


8 5 lunar phases

8.5 Lunar Phases

Unit 8: Astronomy

Sanders


Vocabulary

Vocabulary

  • apogee: point at which the moon is farthest from the earth

Unit 8: Astronomy


Vocabulary1

Vocabulary

  • apogee: point at which the moon is farthest from the earth

  • crescent: phase when less than half the moon is visible

Unit 8: Astronomy


Vocabulary2

Vocabulary

  • apogee: point at which the moon is farthest from the earth

  • crescent: phase when less than half the moon is visible

  • gibbous: phase when more than half the moon is visible

Unit 8: Astronomy


Vocabulary3

Vocabulary

  • apogee: point at which the moon is farthest from the earth

  • crescent: phase when less than half the moon is visible

  • gibbous: phase when more than half the moon is visible

  • perigee: point at which the moon is closest to the earth

Unit 8: Astronomy


Vocabulary4

Vocabulary

  • apogee: point at which the moon is farthest from the earth

  • crescent: phase when less than half the moon is visible

  • gibbous: phase when more than half the moon is visible

  • perigee: point at which the moon is closest to the earth

  • phases: changing shapes of the moon

Unit 8: Astronomy


Months

Months

  • It takes the moon 27.5 days to rotate once on its axis.

Unit 8: Astronomy


Months1

Months

  • It takes the moon 27.5 days to rotate once on its axis.

  • This is called a sidereal month.

Unit 8: Astronomy


Months2

Months

  • It takes the moon 27.5 days to rotate once on its axis.

  • This is called a sidereal month.

    • It is the time cycle that it takes moon to make one full orbit

Unit 8: Astronomy


Months3

Months

  • A complete cycle of the moon's phases takes 29.5 days.

Unit 8: Astronomy


Months4

Months

  • A complete cycle of the moon's phases takes 29.5 days.

  • This is called a synodic month.

Unit 8: Astronomy


Sidereal synodic

Sidereal - Synodic?

  • This 2.5 day difference occurs because as the moon orbits Earth, Earth orbits the sun.

Unit 8: Astronomy


Sidereal synodic1

Sidereal - Synodic?

  • This 2.5 day difference occurs because as the moon orbits Earth, Earth orbits the sun.

  • When the moon gets back to its original position, it must move the extra distance to make up for the Earth’s travels in its orbit.

Unit 8: Astronomy


8 5 lunar phases

Unit 8: Astronomy


Why do we see the same side of the moon

Why do we see the same side of the moon?

  • To sum up; the periods of rotation and revolution for the moon are equal.

Unit 8: Astronomy


Why do we see the same side of the moon1

Why do we see the same side of the moon?

  • To sum up; the periods of rotation and revolution for the moon are equal.

  • Turn to page 15 of the ESRT.

Unit 8: Astronomy


Why do we see the same side of the moon2

Why do we see the same side of the moon?

  • To sum up; the periods of rotation and revolution for the moon are equal.

  • Turn to page 15 of the ESRT.

Unit 8: Astronomy


8 5 lunar phases

Unit 8: Astronomy


Phases

Phases

  • Note that the waxing moon has light on the right side of the moon.

  • The waning side has light on the left.

Unit 8: Astronomy


8 5 lunar phases

Unit 8: Astronomy


  • Login