Regents Alert*****.  To find out the date you must look at the position of sunrise and sunset.  June 21- Northeast to Northwest.  Dec. 21- Southeast.

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Presentation transcript:

Regents Alert*****

 To find out the date you must look at the position of sunrise and sunset.  June 21- Northeast to Northwest.  Dec. 21- Southeast to Southwest.  March 21 & Sept 22- Due East to Due West.

 To find out location you need to look at the altitude of the sun at Solar Noon.  June 21 – Solar Noon directly overhead at 23 ½ North. (Tropic of Cancer)  Dec. 21- Solar Noon directly overhead at 23 1/2 South. (Tropic of Capricorn)  March 21 & Sept. 22- Solar Noon directly overhead at the equator.  The sun is never directly overhead in NYS.

 On June 21 st the sun will always be in the sky at the North Pole.  On Dec 21 st the sun will always be in the sky at the South Pole.

 Link 1 Link 1  Link 2 Link 2  Link 3 Link 3  Link 4 Link 4  Link 5 Link 5

 Equinox Dates:  90º - Your present Latitude Summer Solstice: Equinox altitude º Winter Solstice: Equinox altitude º

 Get your bearings down (Where is South?)  Use the date to determine direction of Sunrise (SE;E;NE)  Use the date to determine direction of Sunset (SW;W;NW)  Use your Latitude and date to calculate the correct altitude of the Sun at noon.  Draw your arc by connecting these 3 points.

March 21 st ; Equator

December 21 st ; 60°N

September 23rd; Tropic of Cancer

June 21 st ; North Pole