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Solar Equatorial Year = Days

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Presentation on theme: "Solar Equatorial Year = Days"— Presentation transcript:

1 Solar Equatorial Year = 365.24 Days

2 Gregorian calendar began in 1582, introduced by Pope Gregory XIII

3 Is it a Leap Year? Let’s find out!

4 Leap years happen every 4 years
Years that end in 00, such as 1800 or 1900, are not leap years Unless the first two numbers in the year are divisible by 4. The year was a leap year. The year 2400 will be a leap year. If the last two numbers are NOT 00, and they ARE divisible by four, then it will be a leap year. Examples: 1996, 2004, 2008, 2012, 2016, 3016, 2112

5 3005 3012 3222 2224 1800 1780 1500 2700 3600 1600

6 1900 2000 2400 2500 2512 1720 1400 1740 1742 1994

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