Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the...
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Transcript of Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the...
![Page 1: Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the moon is lit by the sun. The different phases that we.](https://reader035.fdocuments.in/reader035/viewer/2022070416/5697c0301a28abf838cdab16/html5/thumbnails/1.jpg)
Lunar Phases and Eclipses
![Page 2: Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the moon is lit by the sun. The different phases that we.](https://reader035.fdocuments.in/reader035/viewer/2022070416/5697c0301a28abf838cdab16/html5/thumbnails/2.jpg)
![Page 3: Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the moon is lit by the sun. The different phases that we.](https://reader035.fdocuments.in/reader035/viewer/2022070416/5697c0301a28abf838cdab16/html5/thumbnails/3.jpg)
• The moon revolves around the Earth once every 27 days.
• Only ½ of the moon is lit by the sun.
• The different phases that we see result from our seeing the Moon from different angles.
Reasons for the Phases
![Page 4: Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the moon is lit by the sun. The different phases that we.](https://reader035.fdocuments.in/reader035/viewer/2022070416/5697c0301a28abf838cdab16/html5/thumbnails/4.jpg)
![Page 5: Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the moon is lit by the sun. The different phases that we.](https://reader035.fdocuments.in/reader035/viewer/2022070416/5697c0301a28abf838cdab16/html5/thumbnails/5.jpg)
Names of the Phases• The phases in chronological order
1. New Moon
2. Waxing Crescent
3. First Quarter
4. Waxing Gibbous
5. Full Moon
6. Waning Gibbous
7. Third Quarter
8. Waning Crescent• The term ‘waxing’ means
growing. • The term ‘waning’ means
shrinking.
![Page 6: Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the moon is lit by the sun. The different phases that we.](https://reader035.fdocuments.in/reader035/viewer/2022070416/5697c0301a28abf838cdab16/html5/thumbnails/6.jpg)
The Waxing Cycle of Phases
Waxing Crescent First Quarter Waxing Gibbous Full Moon
![Page 7: Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the moon is lit by the sun. The different phases that we.](https://reader035.fdocuments.in/reader035/viewer/2022070416/5697c0301a28abf838cdab16/html5/thumbnails/7.jpg)
The Waning Cycle of Phases
Waning Gibbous Third Quarter Waning Crescent New
![Page 8: Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the moon is lit by the sun. The different phases that we.](https://reader035.fdocuments.in/reader035/viewer/2022070416/5697c0301a28abf838cdab16/html5/thumbnails/8.jpg)
![Page 9: Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the moon is lit by the sun. The different phases that we.](https://reader035.fdocuments.in/reader035/viewer/2022070416/5697c0301a28abf838cdab16/html5/thumbnails/9.jpg)
Rotation: Spinning on an axis of rotation. (Creates day and night.)
Revolution: Movement of a body around something else.(Creates a year or a lunar cycle.)
![Page 10: Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the moon is lit by the sun. The different phases that we.](https://reader035.fdocuments.in/reader035/viewer/2022070416/5697c0301a28abf838cdab16/html5/thumbnails/10.jpg)
Solar Eclipse
• The moon casts a shadow on the Earth.• Occurs during new moon phase• Inclination model
![Page 11: Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the moon is lit by the sun. The different phases that we.](https://reader035.fdocuments.in/reader035/viewer/2022070416/5697c0301a28abf838cdab16/html5/thumbnails/11.jpg)
Lunar Eclipse• The Earth casts a shadow on the moon.• Occurs during full moon phase.
![Page 12: Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the moon is lit by the sun. The different phases that we.](https://reader035.fdocuments.in/reader035/viewer/2022070416/5697c0301a28abf838cdab16/html5/thumbnails/12.jpg)
Anatomy of a Shadow• Penumbra
– Region of partial shadow
– Partial eclipse will be seen
• Umbra– Region of total shadow– Total eclipse will be
seen.
Umbra
Penumbra
http://highered.mcgraw-hill.com/olcweb/cgi/pluginpop.cgi?it=swf::800::600::/sites/dl/free/0072482621/78778/Eclipses_Nav.swf::Eclipse%20Interactive
![Page 13: Lunar Phases and Eclipses. The moon revolves around the Earth once every 27 days. Only ½ of the moon is lit by the sun. The different phases that we.](https://reader035.fdocuments.in/reader035/viewer/2022070416/5697c0301a28abf838cdab16/html5/thumbnails/13.jpg)