Table of Contents Title: Natural Time Periods (Lunar Month) Page #: 18 Date: 9/24/2012 Title:...

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Words of the Day  Waning: Getting Smaller  Waxing: Getting Bigger  Elongation: The angular distance of a planet or other celestial body from the sun.  Waning: Getting Smaller  Waxing: Getting Bigger  Elongation: The angular distance of a planet or other celestial body from the sun.

Transcript of Table of Contents Title: Natural Time Periods (Lunar Month) Page #: 18 Date: 9/24/2012 Title:...

Page 1: Table of Contents  Title: Natural Time Periods (Lunar Month)  Page #: 18  Date: 9/24/2012  Title: Natural Time Periods (Lunar Month)  Page #: 18

Table of Contents Title: Natural Time Periods (Lunar

Month) Page #: 18 Date: 9/24/2012

Page 2: Table of Contents  Title: Natural Time Periods (Lunar Month)  Page #: 18  Date: 9/24/2012  Title: Natural Time Periods (Lunar Month)  Page #: 18

Objective Students will explore Lunar Phases

by creating a Lunar Phase flipbook.

Page 3: Table of Contents  Title: Natural Time Periods (Lunar Month)  Page #: 18  Date: 9/24/2012  Title: Natural Time Periods (Lunar Month)  Page #: 18

Words of the Day Waning: Getting Smaller Waxing: Getting Bigger Elongation: The angular distance of

a planet or other celestial body from the sun.

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Natural Time Periods

Natural Time Periods:•1 Year = 365 and 1/4 days (Revolution)•1 Day = 24 hours (Rotation)

•Weeks and Months modify the natural time periods.

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Natural Time Periods

Lunar Month:• There are 29 and 1/2 days in a

Lunar Month There are 4 phases of the Lunar

Month1. New Moon

We can’t see it

Ø First Quarter

Ø Full Moon

Ø Last Quarter

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Natural Time Periods

Lunar Month:• The 4 phases of the lunar month

match the four weeks of the calendar month.

• Results in a 12 month year because 365 divided by 29 and 1/2 ≈ 12

• Solar Day: The time it takes for Earth to make one full rotation relative to the sun.

• Sidereal Day: The time it takes for Earth to make one full rotation relative to a point in space Constellations.• Sidereal Day is 4 minutes shorter than

Solar Day.