Why is there a black circle on the side of the sun of Venus, what is that?

Can you see it on a cloudy day?

Venus is surrounded by dust. Those particles float around Venus, forming a circle of light.

This is a typical solar halo. Solar halo (solar halo; Solar Flare) is a light phenomenon formed by the refraction of sunlight through ice crystals in the clouds, and it is circular and colored around the sun. The appearance of solar halos often indicates that the weather will change to a certain extent.

The solar halo is a relatively rare celestial phenomenon, which can be divided into full halo and notched halo.

When the corresponding angle of view of the radius of the halo is between 22 and 46, one can observe the phenomenon of "solar halo" with the naked eye. The greater the content of ice crystals in the clouds, the smaller and more significant the "heliohalo" halo after refraction of sunlight, which is easy to observe. Conversely, a "solar halo" cannot be formed, or even if it is formed, it cannot be clearly observed on the ground.

Aperture, infrared violet is called "halo", as the saying goes, "the sun halo three more rain, the moon halo noon wind", halo, often produced on the cirrostratus clouds, indicating that there will be heavy rain or wind,,, there is also a kind of halo, and this halo is just the opposite, ultraviolet red, called "Hua", as the saying goes, "Huahuan" if from small to large, it means that the weather is clear, if "Huahuan" from large to small, indicating that the air here is gathering, Hua, often produced in Altocumulus clouds, with the sun and accompanied by Hua, the weather is very unstable.

Solar halo is also called a round rainbow [1] an atmospheric optical phenomenon formed by the refraction or reflection of ice crystals when sunlight passes through cirrostratus clouds. When light hits the ice crystals in the cirrostratus clouds, it is refracted twice and dispersed into various colors of light in different directions. When there are cirrostratus clouds, there will be countless ice crystals floating in the sky, and the ice crystals in the same circle around the sun can refract the same color of light into the human eye to form an inner infrared violet halo, (in fact, there is not) when there are cirrostratus clouds composed of ice crystals in the sky, there are often one or more than one or two colored rings around the sun as the center and inner infrared violet light, and sometimes there will be many colored or white light spots and arcs, which are collectively called halos.

This is a typical solar halo. Solar halo (solar halo; Solar Flare) is a light phenomenon formed by the refraction of sunlight through ice crystals in the clouds, and it is circular and colored around the sun. The appearance of solar halos often indicates that the weather will change to a certain extent.

The solar halo is a relatively rare celestial phenomenon, which can be divided into full halo and notched halo.

When the corresponding angle of view of the radius of the halo is between 22 and 46, one can observe the phenomenon of "solar halo" with the naked eye. The greater the content of ice crystals in the clouds, the smaller and more significant the "heliohalo" halo after refraction of sunlight, which is easy to observe. Conversely, a "solar halo" cannot be formed, or even if it is formed, it cannot be clearly observed on the ground.

The virtual image of the sun on the lens is then broken down into seven colors.

Refraction phenomenon Do the task ahhhh

It is a halo, a light phenomenon formed by the refraction of sunlight through ice crystals in the clouds.

Transit of Venus: The orbit of Venus is on the inner side of the Earth's orbit, and at some special moments, the Earth, Venus, and the Sun will be in a straight line, and then Venus can be seen from the Earth moving slowly on the surface of the Sun like a small black dot, which is called "Transit of Venus" in astronomy.

The transit of Venus is a rare astronomical phenomenon, the so-called "transit.""It refers to the fact that when Venus orbits between the earth and the sun, the shadow of Venus passes over the surface of the sun, just like when the moon runs between the earth and the sun, the shadow of the moon passes over the surface of the sun and causes a lunar eclipse, but Venus is too far away from the earth, its shadow is too small to cover the sun, and it cannot form an "eclipse"."Therefore, it is called "Ling.""Day.

It is a peculiar astronomical phenomenon. A transit of Venus is a celestial phenomenon that occurs when Venus orbits between the Sun and the Earth, and the three are exactly in a straight line, and Venus blocks part of the sun's surface.

Venus orbits on the inner side of the Earth's orbit, and at some special moments, the Earth, Venus, and the Sun will be in a straight line, and Venus can be seen from the Earth moving slowly on the surface of the Sun like a small black dot, which is called "Venus Transit" in astronomy. Therefore, the transit of Venus is also known as a small solar eclipse. The principle is different from that of a solar eclipse.

The transit of Venus can be divided into five phases: Transit Circumcision, Circumvention Circumcision, Circumcision, Circumcision, Circumcision.

Venus will pass between the Earth and the Sun, and people will see a small black dot moving past the Sun, which is the transit of Venus.

When the star orbits between the Sun and the Earth's source, we can see a small black dot slowly passing through the surface of the Sun, a celestial phenomenon called a "transit of Venus". In astronomy, the two "transits of Venus" that occur with the shortest interval between them are often grouped together. The pattern of this phenomenon is usually 8 years, 8 years, 8 years, years, and so on.

Astronomers estimate that the transit of this group of Venus will occur on June 8, 2004 and June 6, 2012. This is mainly due to the fact that Venus, after 13 revolutions around the Sun, is close to the Earth again and between the Earth and the Sun, which is equivalent to 8 years on Earth.

Usually, BAI uses hours to calculate gold.

The time of the transit of the star (2004 and 2012, probable.

If there is nothing else, it should be a pigmented spot on the iris, just like some people have a black mole on their body, you can leave it alone. If you are really not at ease, you can go to the hospital for a look.

Can the little black dot next to your pupil be visible to the naked eye? Or through the machine to see.

Braille, also known as Braille or Braille, is a tactile text designed for blind people. It is composed of different combinations of bumps made on the paper by means of a Braille board, a Braille machine, a Braille printer, etc., and generally the Braille of each square is composed of six points. It was created in 1824 by Louis Blair, a blind Frenchman, so it is commonly known as "Braille" internationally.