Northward Equinox: Sunrise, Length of Daytime, Sunset vs ...

Sunrise Moment, Length of Daytime, Sunset Moment (hours)

Northward Equinox: Sunrise, Length of Daytime, Sunset vs. Latitude

March 20, 2006 at 18:17:28 UT, EoT -7.4', apparent solar noon at 94? 22' 5.3" W, sea level.

23

22

21

20

19

18

17

16

15

14

13

12

11

10

Sunset Apparent Solar Time

9

Length of Daytime

8

Sunrise Apparent Solar Time

7

6

5

4

3

2

1

-90? -80? -70? -60? -50? -40? -30? -20? -10? 0? +10? +20? +30? +40? +50? +60? +70? +80? +90?

Latitude (>0? = Northern Hemisphere)

Analysis by Dr. Irv Bromberg, University of Toronto, Canada



Sunrise Moment, Length of Daytime, Sunset Moment (hours)

23 22 21 20 19 18 17 16 15 14 13 12 11 10

9 8 7 6 5 4 3 2 1 -70?

North Solstice: Sunrise, Length of Daytime, and Sunset vs. Latitude

June 21, 2006 at 12:23:34 UT, EoT -1.7', apparent solar noon at 5? 53' 33" W, sea level.

Sunset Apparent Solar Time Length of Daytime Sunrise Apparent Solar Time

-60? -50? -40? -30? -20? -10? 0? +10? +20? +30? +40? +50? +60? +70? Latitude (>0? = Northern Hemisphere)

Analysis by Dr. Irv Bromberg, University of Toronto, Canada



Sunrise Moment, Length of Daytime, Sunset Moment (hours)

Southward Equinox: Sunrise, Length of Daytime, and Sunset vs. Latitude

September 23, 2006 at 04:10:39 UT, EoT +7.5', apparent solar noon at 117? 20' 16.8" E, sea level.

23

22

21

20

19

18

17

16

15

14

13

12

11

10

Sunset Apparent Solar Time

9

Length of Daytime

8

Sunrise Apparent Solar Time

7

6

5

4

3

2

1

-90? -80? -70? -60? -50? -40? -30? -20? -10? 0? +10? +20? +30? +40? +50? +60? +70? +80? +90?

Latitude (>0? = Northern Hemisphere)

Analysis by Dr. Irv Bromberg, University of Toronto, Canada



Sunrise Moment, Length of Daytime, Sunset Moment (hours)

23 22 21 20 19 18 17 16 15 14 13 12 11 10

9 8 7 6 5 4 3 2 1 -70?

South Solstice: Sunrise, Length of Daytime, and Sunset vs. Latitude

December 22, 2006 at 00:23:15 UT, EoT +1.7', apparent solar noon at 174? 11' 13.1" E, sea level.

Sunset Apparent Solar Time Length of Daytime Sunrise Apparent Solar Time

-60? -50? -40? -30? -20? -10? 0? +10? +20? +30? +40? +50? +60? +70? Latitude (>0? = Northern Hemisphere)

Analysis by Dr. Irv Bromberg, University of Toronto, Canada



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