Time of total solar eclipse in Zigong

The annular solar eclipse is from June 2 1 day 14: 43 to 17: 24, and partial solar eclipse can be seen on some earth.

The point at which the sun approaches the orbit of the moon and the earth. The moon is farthest from this point. Linear propagation of light. There will be a total solar eclipse and magical symmetry. The diameter of the sun is 400 times that of the moon, and its distance from the earth is only 400 times that of the moon. When the moon is completely between the earth and the sun, for those who are completely in the shadow of the moon, the surface of the sun is completely covered. The sun turned black, leaving only a golden halo and a blue sky.

Extended data:

Precautions:

Sunlight is a million times stronger than moonlight. If there is no dimming device, it can't be observed directly with naked eye telescope, which is easy to cause retinal damage and lead to blindness. Medical experts point out that "solar retinitis" caused by long-term exposure to the ultraviolet and infrared rays of the sun is almost impossible to cure. Photosensitivity caused by long-term ultraviolet rays is incurable.

Macula is a sensitive part of retina. It can focus the light and make the image clear. Macula on the retina can never be recovered. Observing instruments such as cameras and telescopes directly face the sun, which will not only damage the lens in the instrument, but also directly burn the retina by the sunlight collected by the optical system.

Watching solar eclipses (partial solar eclipse, annular solar eclipse and total solar eclipse) requires professional observation tools to protect the safety of human eyes. Its core part is the lens, which must be a professional dimming film. There are metal films, polycarbonate, polyester fiber films and other materials. The ideal large transmittance of solar dimmer is 0.0032% (3/ 100000), which can effectively filter ultraviolet and infrared rays.