Fill in table 2 difference in degrees latitude. Link to visual - http://astro.un

Question

Fill in table 2 difference in degrees latitude.

Link to visual - http://astro.unl.edu/naap/motion1/animations/seasons_ecliptic.swf

Table 2

Difference (degrees latitude)

Direction of movement of subsolar point (N or S)

a. Dec 1 and Dec 21

S

b. Jan 1 and Feb 1

N

c. March 1 and March 21

N

d. April 1 and May 1

N

e. June 1 and June 21

N

f. July 1 and Aug 1

S

g. Sept 1 and Sept 21

S

Difference (degrees latitude)

Direction of movement of subsolar point (N or S)

a. Dec 1 and Dec 21

S

b. Jan 1 and Feb 1

N

c. March 1 and March 21

N

d. April 1 and May 1

N

e. June 1 and June 21

N

f. July 1 and Aug 1

S

g. Sept 1 and Sept 21

S

Table 1 (15 ARitude in Alulude an Dste 37.7"N 21 235 S 22.9 17 29.5 35.4 44.7 S 67.1 S 82.3 S 21 straight up 4.3 14.9 56.7 67.3 74.4 S 85.8 N S 75.1 N S 68 75.4 69.8 S 67.1 N S 72.6 N S 82.9 N 23 7.4 59.5 r 21 47.9 37.0 30.3 S 85. S 74.6 S S 67.8 -4.5 15.4 S Note that this animation uses 23.4 rather than 23.5 for the tilt-to keep things consistent with the course lecture and readings, I have filled in certain values using 23.5(which will be different than what the animation will show if you stopped it on those dates).

Explanation / Answer

See the question is not complete, what I have understood from the problem is that they might be asking about what should be the difference in latitude of the solar point on Dec 1 and Dec 21 and so on.

Solar point is a point on the earth surface where sunrays hit exactly perpendicular to the surface.

See within 180 days the solar point shift from 23.5 to -23.5

so the total change in latitude in 180 days is 47 degrees

so the change in latitude per day is a 47/180=0.261 degree

Now

a. Dec 1 and Dec 21

the difference in days is 20

change in latitude per day is 0.261

so total difference in latitude is =0.261*20=5.22 degrees, the sun moves in the south(s)

b. 31*0.261=8.091 degrees, the sun moves in North(N)

c.0.261*20=5.22 ,the sun moves in North(N)

d.31*0.261=8.091, the sun moves in North(N)

e.0.261*20=5.22, the sun moves in North(N)

f.31*0.261=8.091, the sun moves in South (S)

g.0.261*20=5.22, the sun moves in South (S)  

for any doubt please comment below, I will be happy to help You.......Thank U

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