Suqian can't see the annular solar eclipse, but it can see the partial solar eclipse. Sunrise time in Suqian, Jiangsu: 5: 12' First loss time 5: 21' 32 "Tangential azimuth P245°V311° Sun azimuth height 67 3 < P > A partial solar eclipse is a phenomenon that the moon is located between the earth and the sun and forms a shadow on the earth. The shadow of the moon can be divided into three parts: umbra, penumbra and false umbra. The orbit of the moon around the earth and that of the earth around the sun are not round, and the distance between the sun and the moon and the earth is short and long.

When the observer sees the sun partially covered by the moon in the penumbra, it is called a partial solar eclipse; During the solar eclipse, the observer sees that the sun is completely covered by the moon in the penumbra, which is called a total solar eclipse; There is a halo around it, called an annular eclipse.

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Precautions for watching annular eclipse:

1. Choose the correct filter. Although it is almost sunset, the sun is still dazzling. Pay attention to protect your eyes. Select the correct filter. Try welding glass, computer floppy disk core and photographic film. Even so, the viewing time should not be too long. When taking pictures, add an appropriate filter in front of the lens, which will damage the camera. When the sun goes down, you can try to take off the filter and look at it directly with the naked eye, not too long.

2. The most important thing to observe the solar eclipse is to protect your eyes. Although the eclipse was partially blocked by the sun, the sun was not very dazzling. However, the brightness of light emitted from 1% of the solar area is stronger than that of welding light. If you look directly at the sun for a long time, it will cause the macular of retina to be burned, resulting in "solar retinitis", and the method of burning and macular of retina will never disappear will be restored.

3. To choose the right viewing place, the best viewing place is where the sun goes down. If you are in a high-rise building, you can watch it from the balcony window in the west. To reach the top of the tower, you need to choose this place in the first two days. You need to try to take a photo of the sun and measure the exposure. Don't try to memorize.