"Wonderful Scene" Teaching Plan for Middle School Class

The bright tissue at the edge of the concept solar photosphere extends outward to the chromosphere, that is, the spectral spot. Light spots generally surround sunspots and are closely related to sunspots. When observing with an astronomical telescope, it is often found that the surface of the photosphere is bright and dark. This bright and dark spot is formed because of the different temperatures here. The darker points are called "sunspots" and the brighter points are called "sunspots". Sunspots often "perform" on the edge of the sun's surface and rarely appear in the central area of the sun's surface. Because the radiation in the central area of the sun's surface belongs to the deep gas layer of the photosphere, and the light at the edge mainly comes from the higher part of the photosphere, the light spot is higher than the sun's surface and can be regarded as a "plateau" on the photosphere.

Sunspots related to sunspots are composed of bright fibers, with a width of 5000- 10000 km and a length of about 50000 km, roughly perpendicular to the equator. Sunspots unrelated to sunspots appear at a high latitude of 70, with a small area and a slightly circular shape, with a diameter of about 2,300 kilometers and an average life span of only half an hour. Light spots appear several hours or days earlier than sunspots, and then gather into two parts, showing dipole characteristics similar to sunspot groups. The differential rotation of the sun gradually pulls the original circular spot into an ellipse, and its leading part is slightly close to the equator. In the end, the light spot breaks down into many small pieces, and then gradually disintegrates.

Like sunspots, the active period of facula is 1 1 year, but the latitude active range of facula is about 15 wider than sunspots.

The spectrum of sunspot shows that its ion spectral line is stronger than that of photosphere, while neutral atomic spectral line is weaker than that of photosphere, so the temperature of sunspot is higher than that of photosphere. However, the ratio of the total radiation intensity of the light spot to the photosphere varies with the distance from the sun center, indicating that the light spot is not in radiation balance, and its bottom temperature is low and its upper temperature is high. Near the edge of the sun's surface, the upper layer of the visible light spot, its average temperature is about 100 degrees higher than the surrounding, and its brightness is about 10% higher.

The magnetic field of the light spot is mainly longitudinal, and its intensity reaches several hundred gauss. Edit this photo point: flare

A photographic lens consisting of several lenses. When the light passes through the lens, it will produce harmful reflection and even cover the picture, which is called facula. Therefore, the coating of the photographic lens also plays a role in preventing light spots. Especially in backlight photography, if there is no hood installed, it is easy to produce light spots.

Edit points in the window. This part of the forest attractions: Sanfleck.

In forestry, it refers to the circular illumination surface projected to the ground through the gap between branches and leaves of the crown. The composition of the light spot in the forest is not much different from the direct light in the open space, but the intensity is weakened. Due to the rotation of the earth and the swing of branches and leaves, the light spot often moves on the ground, and the irradiation time is short, sometimes hidden and sometimes present. The light spots in the forest have certain influence on the growth of undergrowth plants, young seedlings and football soil. Edit the spot tissue on the photosphere that is brighter than the surrounding area. When observing with an astronomical telescope, it is often found that the surface of the photosphere is bright and dark. This bright and dark spot is formed because of the different temperatures here. The darker points are called "sunspots" and the brighter points are called "sunspots". Sunspots often "perform" on the edge of the sun's surface and rarely appear in the central area of the sun's surface. Because the radiation in the central area of the sun's surface belongs to the deep gas layer of the photosphere, and the light at the edge mainly comes from the higher part of the photosphere, the light spot is higher than the sun's surface and can be regarded as a "plateau" on the photosphere.

Sunspots are also strong storms on the sun, which astronomers call "plateau storms". However, compared with the ground storm with dark clouds rolling and heavy rain and strong winds, the character of "plateau storm" is much gentler. The brightness of the light spot is only slightly stronger than that of the quiet photosphere, generally only10%; The temperature is 300℃ higher than that of the quiet photosphere. Many sunspots have an indissoluble bond with sunspots, and they often "perform" around sunspots. A small number of sunspots have nothing to do with sunspots, and are active in the 70 high latitude area, with a relatively small area. The average life span of spots is about 15 days, and the life span of larger spots can reach three months.

The light spot not only appears in the photosphere, but also has its activity place in chromosphere. When it "performs" on the color ball, the position of the activity is roughly the same as when it appears on the light ball. However, what appears on the color ball is not a "light spot", but a "spectral light spot". In fact, the light spot and the spectral spot are the same whole, just because their "resident" heights are different. It's like a building, where the light spot lives downstairs and the spectrum spot lives upstairs.