How to shoot an eclipse?

According to the reporter, the latest weather forecast for tomorrow is cloudy to cloudy. "Cold air is coming, and these two days are accompanied by rainfall. It will be sunny in the next few days after the cold front crosses the border. 10 happens to be when the cold front passes, and you should still be able to see the moon. " Teacher Pan Xiaoqing said that at present, it can only be preliminarily judged, and the exact situation depends on the weather conditions of the day. If there are few clouds, citizens can observe through the cracks in the clouds. If it is cloudy or the clouds are thick, the eclipse may not be observed.

This eclipse started at 7: 30 in the evening, and the moon began to be covered with gauze shyly. At 20: 45, the first loss occurred, and the edge of the moon began to enter the umbra of the earth, that is, what people usually call "the tengu swallowed the moon" began, and it entered the stage of total lunar eclipse from 22: 05 to 22: 58. During this period, citizens can enjoy the sight of the "red moon hanging high", which is also the best time for citizens to observe. At 22: 58, the total lunar eclipse ended, and one side of the moon appeared bright. The "Tiangou" began to spit out the moon, and the moon gradually touched for the last time.

observational method

Professor You Yi, secretary general of Fujian Astronomical Society, said that people can watch the total lunar eclipse directly with the naked eye or through astronomical instruments.

Professor You said that the naked eye is mainly used to observe the phase, brightness and color changes of the moon. When a total lunar eclipse occurs, the moon passes through the southern half of the earth's shadow. If citizens look east with naked eyes, they will find that the left half of the moon has changed more than the right half. The lower left corner of the moon will change first, and the shadow will gradually cover the moon to the upper right corner, and then slowly leave the moon from the upper left corner. If the public's viewing direction changes gradually, it should be noted that the direction in which the shadow slides out of the moon and its relative position will also change.

"If you use a telescope and other professional tools to observe, of course, the effect will be better. You can not only see the changes in the phase, color and brightness of the moon, but also see the moon sea and radiation pattern on the surface of the moon, as well as the nearby Pleiades star clusters of Jupiter and Taurus. " Teacher Pan said that ordinary citizens can watch with ordinary binoculars. If conditions permit, they can choose a telescope with a diameter of more than 80 mm to observe the surface of the moon.

point of observation

If the weather is fine that day, citizens can watch the total lunar eclipse. When choosing a place to watch, they should pay attention to the following two points:

First, there should be no obstructions around, and you should watch it from your balcony or other relatively empty places.

Second, avoid strong light, so as not to affect the viewing effect. Avoid strong light and watch in the suburbs or playgrounds and other open places.

If you want to watch the total lunar eclipse better, our newspaper and Fuzhou Youth Activity Center organized observation activities at the Planetarium. If you want to go, it is recommended to go to the best place in the evening from 10 to 1 1. You can see the most beautiful red moon at this time. Now more than 60 astronomy enthusiasts have signed up. In order to let more people enjoy the eclipse, the planetarium will also project the total eclipse image on the big screen through the camera lens to prevent too many citizens from using telescopes and other observation instruments one by one.

In addition to the planetarium of Fuzhou Youth Activity Center, various colleges and universities also hold observation activities. At 7: 30 tomorrow night, citizens can also go to Guangchenglou Observatory in Minhou University Town, Fuzhou, Xintian Track of Minjiang College, and the lawn in front of the library of Fuzhou University Town. In addition to the above methods, China Astronomical Science Network will also broadcast the whole process of the total lunar eclipse live tomorrow night.

Photography mode

People who like celestial photography basically have cameras and tripods, so it will be better to choose a suitable place to shoot. If you want photos to be more ornamental, you can choose some distinctive background objects, such as landmarks such as places of interest.

Total lunar eclipse photography: As the moon is very dark during the total lunar eclipse, it is suggested to increase the ISO value of sensitivity and expose it in a short time. When shooting, adjust the dark red moon to the center of the camera's field of vision, use the B shutter and cable to open the aperture to the maximum, and expose it for 10-20 seconds. Teacher Pan Xiaoqing reminded that due to the long total solar eclipse, you can try to pay more attention to the exposure parameters and you will definitely take good photos.

"Eclipse gourd string" (continuous photography): Choose a camera and a wide-angle lens that can be continuously exposed in the same picture for many times, fix them with a tripod, and calculate in advance how long it takes to shoot once (usually 15-20 minutes), so that the whole continuous change process of the eclipse can be photographed. Because the moon will rise in the east and set in the west, you should adjust the lens to the east before shooting, so as not to affect the painting at last.

Earth shadow photography: this is usually taken by astronomy enthusiasts with telescope equipment. Using a long lens camera, mounted on the equatorial plane, the moon is photographed on the same negative through repeated exposure. It is recommended to expose every 20-30 minutes.