Traditional Culture Encyclopedia - The 24 Solar Terms - How to calculate the shortest shadow in a year?
How to calculate the shortest shadow in a year?
12/22
There is a day in the northern hemisphere.
In this area
The midday sun shadow is the longest in the whole year, and the Capricorn and its south area are the shortest in the whole year.
Between the Tropic of Cancer
In this area, when the sun is shining directly,
The midday shadow shrinks to zero (or the midday shadow coincides with the object), which is the shortest in the whole year.
. Tanlaoshi geography studio comprehensive arrangement
Second, the application significance
1. According to the length of the shadow in a day, infer the local time of the observation point.
For example:
Shadows cast by objects in the sun.
One day at most.
The shortest
What is the local time?
12 hour
2. According to one year
Noon shadow
Situation, guess the length of the observation hemisphere, season, etc.
( 1)
June 22(nd)
Sunrise at noon
Longest in the whole year
This place is in
It is winter in the southern hemisphere.
; reach
Shortest year
This place is in
The Tropic of Cancer and its northern area are in summer.
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