What is the basis for "When the sun begins to rise, people are closer to you, but when the sun is midday, people are far away"?

The sun is the same distance from the earth in the morning and at noon. Why does the sun appear larger in the morning than at noon? This is a visual error and illusion. The same object appears small when placed in a group of objects larger than it, and appears large when placed in a group of objects smaller than it. In the same way, the morning sun rises from the horizon against the background of trees, houses, distant mountains and a small corner of the sky. In this comparison, the sun appears larger at this time. The sun rises high at noon, and the vast sky is the backdrop. At this time, the sun appears small. Secondly, the white object appears larger than the black object. This physical phenomenon is called "light penetration". When the sun first rises, the background is the dark sky, and the sun is extremely bright; at noon, the background is thousands of miles of blue sky, and the sun has little contrast with its brightness, making it appear smaller.

The temperature at noon is higher than in the morning. Is the sun closer to us at this time than in the morning? No. The main reason is that the sun shines obliquely on the earth in the morning and the sun shines directly on the earth at noon. At the same time and in the same area, direct radiation generates more heat than oblique radiation. At the same time, at night, the heat from the sun irradiates the ground and dissipates, so it feels cool in the morning; at noon, the heat from the sun irradiates the ground, so it feels hot. The coolness or hotness of the temperature cannot explain the distance or proximity of the sun to the ground