From winter to the sun, the sun shines directly on the Tropic of Capricorn (23.26 S), and the formula for calculating the noon sun height angle is H = 90-(α-β) (that is, the noon sun height = 90-| the local geographical latitude-the latitude of the direct sun point at this time |).

Give some big cities:

The latitude and longitude of the center of Beijing: (116.41667e, 39.9 1667 N), so the noon sun height angle from winter solstice in Beijing is:

Latitude and longitude of Shanghai urban area: (12 1.43333 E, 34.50000 N), so the noon sun height angle from winter solstice in Shanghai is:

H=90 -(34.50000 -(-23.26 ))=32.24

Latitude and longitude of Tianjin urban area: (1 17.20000 E, 39. 13333 N), so the solar altitude angle from winter to noon in Tianjin is:

h = 90-(39. 13333-(-23.26))= 27.60667

Latitude and longitude of Shenzhen: (1 14.06667 E, 22.6 1667 N), so the noon sun height angle from winter solstice in Shenzhen is:

h = 90-(22.6 1667-(-23.26))= 44. 12333

Latitude and longitude of Fuzhou: (1 19.30000 E, 26.08333 N), so the noon sun height angle of Tianjin winter solstice is:

h = 90-(22.6 1667-(-23.26))= 44. 12333

Latitude and longitude of Lanzhou: (103.73333 E, 36.03333 N), so the noon sun height angle of winter solstice in Lanzhou is:

h = 90-(36.03333-(-23.26))= 30.70667

The latitude and longitude of Nanchang: (1 15.90000 E, 28.68333 N), so the noon sun height angle from winter solstice in Nanchang is:

h = 90-(28.68333-(-23.26))= 38.05667

The latitude and longitude of Taiyuan: (1 12.53333 E, 37.86667 N), so the altitude angle of the sun from winter to noon in Taiyuan is:

h = 90-(37.86667-(-23.26))= 28.8/7333

The latitude and longitude of Chengdu: (104.06667 E, 30.66667 N), so the noon sun height angle from winter solstice in Chengdu is:

h = 90-(30.66667-(-23.26))= 36.07333

Latitude and longitude of Lhasa: (9 1.00000 E, 29.60000 N), so the solar altitude angle at noon from winter solstice in Lhasa is:

h = 90-(29.60000-(-23.26))= 37. 14

The latitude and longitude of Urumqi: (87.68333 E, 43.76667 N), so the noon sun height angle of Urumqi from winter solstice is:

h = 90-(43.76667-(-23.26))= 22.97333

The latitude and longitude of Kunming: (102.73333 E, 25.05000 N), so the noon sun height angle of Kunming from winter solstice is:

h = 90-(25.05000-(-23.26))= 4 1.69

The latitude and longitude of Yinchuan: (106.26667 E, 38.46667 N), so the noon sun height angle of Yinchuan from winter solstice is:

h = 90-(38.46667-(-23.26))= 28.27333

The longitude and latitude of Harbin: (126.63333 E, 45.75000 N), so the noon sun height angle from winter solstice in Harbin is:

H=90 -(45.75000 -(-23.26 ))=20.99

Longitude and longitude of Haikou: (1 10.35000 E, 20.0 1667 N), so the noon sun altitude angle of Haikou from winter to sunrise is:

h = 90-(20.0 1667-(-23.26))= 46.72333

Extended data

H = 90-| Latitude difference | (Latitude difference refers to the difference between the geographical latitude of a place and the latitude of the direct point of the day)

For example, if the latitude of A is 40 N, the noon sun height of A is found from the summer solstice.

From summer to morning, the latitude of direct sunlight is 23 26 ′ n, and the latitude difference with A is = 40-23 26 ′ =16 34 ′, so H = 90-16 34 ′ = 73 26 ′.

If you find the height of the sun at noon from winter to Sunday in one place. In winter solstice, the latitude of direct sunlight is 23 26', and the latitude difference with A is = 40+23 26' = 63 26', so H = 90-63 26' = 26 34'.

Calculation formula:

H=90 -(α-β)

* α is the latitude of the sun's direct point, and β is the required latitude (the north latitude is positive and the south latitude is negative).

References:

Noon sun height angle