地球的阴影
(原标题: Shadows of Earth)
2023-05-09
浏览次数: 13
你能在今天的图像中找到两个地球阴影吗？这有点棘手。为了找到第一个阴影，观察大气的顶部呈现粉红色，底部呈现蓝色。这是因为上半部分暴露在阳光直射下，而下半部分则没有。中间的紫色区域被称为金星带，尽管金星只能出现在天空的另一边，靠近太阳。低层大气的蓝色是由地球阻挡阳光造成的，形成了地球阴影1号。现在，第二个地球阴影在哪里？看看月亮。你注意到左下方有什么不寻常的地方吗？该区域看起来异常黑暗，因为它处于地球的阴影中，形成了地球阴影2号。确切地说，月球是在月食期间拍摄的。这张精心拍摄的照片于2018年7月在意大利西西里岛的桑皮耶里拍摄。
查看原文解释
Can you find two Earth shadows in today's image? It's a bit tricky. To find the first shadow, observe that the top part of the atmosphere appears pink and the lower part appears blue. This is because the top half is exposed to direct sunlight, while the lower part is not. The purple area in between is known as the Belt of Venus, even though Venus can only appear on the other side of the sky, near the Sun. The blue color of the lower atmosphere is caused by the Earth blocking sunlight, creating Earth shadow number 1. Now, where is the second Earth shadow? Take a look at the Moon. Do you notice something unusual about the lower left part? That area appears unusually dark because it is in the shadow of the Earth, creating Earth shadow number 2. To be precise, the Moon was captured during a lunar eclipse. This carefully timed image was taken in Sampieri, Sicily, Italy, in July 2018.
© Marcella Giulia Pace