The Moon
A look at our nearest
neighbor in Space!
What is the Moon?
• A natural satellite
• One of more than 96 moons in
our Solar System
• The only moon of the planet
Eart...
Location, location, location!
• About 384,000 km
(240,000 miles)
from Earth
• 3,468 km (2,155
miles) in diameter
(about ¼ ...
The Moon’s Surface
• No atmosphere
• No liquid water
• Extreme
temperatures
– Daytime = 130C
(265°F)
– Nighttime = -190C...
Lunar Features - Craters
• Up to 2500 km (1,553 miles) across
• Most formed by meteorite impact on the Moon
• Some formed ...
Movements of the Moon
• Revolution – Moon orbits
the Earth every 271/3 days
• The moon rises in the east
and sets in the w...
It’s Just a Phase
• Moonlight is reflected
sunlight
• Half the moon’s surface is
always reflecting light
• From Earth we s...
Waxing and Waning
•
•
•
•
•
•
•
•
•

New moon
Waxing Crescent moon
First Quarter moon
Waxing Gibbous moon
Full moon
Waning...
FOUR MAIN SHAPES

FULL

QUARTER

CRESCENT

GIBBOUS
Plane of earth’s orbit

Moon

Earth
Moon

Plane of lunar orbit
Lunar Eclipses
• Moon moves into
Earth’s shadow – this
shadow darkens the
Moon
– Umbra
– Penumbra

• About 2-3 per year
• ...
Solar Eclipses
• Moon moves between
Earth and Sun
• Moon casts a shadow
on part of the Earth
• Total eclipses rare –
only ...
• 1950s to 1960s probes
• Neil Armstrong
First man on the Moon
– July 20, 1969
• Six Apollo missions
(1969-1972)
– 382 kg ...
When will we return?
Moon base of the future?

• What would you need to live there?
Name this phase!

Full Moon
What time does this phase rise and set?
Name this phase!
First Quarter
Name this phase!
Waxing Crescent
Name this phase!

Waning
Gibbous
Name this
phase!

Third Quarter
Name this phase!

Waxing Gibbous
Name this phase!

Waning Crescent
Name this phase!

New Moon
Our moon
Our moon
Our moon
Our moon
Our moon
Our moon
Our moon
Our moon
Our moon
Our moon
Our moon
Our moon
Our moon
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Our moon

  1. 1. The Moon A look at our nearest neighbor in Space!
  2. 2. What is the Moon? • A natural satellite • One of more than 96 moons in our Solar System • The only moon of the planet Earth
  3. 3. Location, location, location! • About 384,000 km (240,000 miles) from Earth • 3,468 km (2,155 miles) in diameter (about ¼ the size of Earth)
  4. 4. The Moon’s Surface • No atmosphere • No liquid water • Extreme temperatures – Daytime = 130C (265°F) – Nighttime = -190C (-310 F) • 1/6 Earth’s gravity
  5. 5. Lunar Features - Craters • Up to 2500 km (1,553 miles) across • Most formed by meteorite impact on the Moon • Some formed by volcanic action inside the Moon
  6. 6. Movements of the Moon • Revolution – Moon orbits the Earth every 271/3 days • The moon rises in the east and sets in the west • The moon rises and sets 50 minutes later each day • Rotation – Moon turns on its axis every 27 days • Same side of Moon always faces Earth
  7. 7. It’s Just a Phase • Moonlight is reflected sunlight • Half the moon’s surface is always reflecting light • From Earth we see different amounts of the Moon’s lit surface • The amount seen is called a “phase”
  8. 8. Waxing and Waning • • • • • • • • • New moon Waxing Crescent moon First Quarter moon Waxing Gibbous moon Full moon Waning Gibbous moon Third Quarter moon Waning Crescent moon New moon last (third)quarter w aning M oon m oon orbit`s earth SU N gibbous moon crescent earth full moon new moon gibbous moon crescent w axing M oon first quarter
  9. 9. FOUR MAIN SHAPES FULL QUARTER CRESCENT GIBBOUS
  10. 10. Plane of earth’s orbit Moon Earth Moon Plane of lunar orbit
  11. 11. Lunar Eclipses • Moon moves into Earth’s shadow – this shadow darkens the Moon – Umbra – Penumbra • About 2-3 per year • Last up to 4 hours
  12. 12. Solar Eclipses • Moon moves between Earth and Sun • Moon casts a shadow on part of the Earth • Total eclipses rare – only once every 360 years from one location!
  13. 13. • 1950s to 1960s probes • Neil Armstrong First man on the Moon – July 20, 1969 • Six Apollo missions (1969-1972) – 382 kg (842 lbs) rocks • 12 Americans have walked on the moon Exploring the Moon
  14. 14. When will we return?
  15. 15. Moon base of the future? • What would you need to live there?
  16. 16. Name this phase! Full Moon What time does this phase rise and set?
  17. 17. Name this phase! First Quarter
  18. 18. Name this phase! Waxing Crescent
  19. 19. Name this phase! Waning Gibbous
  20. 20. Name this phase! Third Quarter
  21. 21. Name this phase! Waxing Gibbous
  22. 22. Name this phase! Waning Crescent
  23. 23. Name this phase! New Moon

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