巴塔哥尼亚上空的日环食

巴塔哥尼亚上空的日环食

A person stands looking over a lake. High in a partly cloudy sky is the Sun. A close look at the Sun will show that there is a dark spot in the center — the Moon during an annular eclipse. Please see the explanation for more detailed information.
一个人站在湖边眺望。在多云的天空中,太阳高高挂起。仔细观察太阳,会发现中央有一个黑点,这就是日环食时的月球。有关更多详细信息,请参阅说明。

落日的多重绿闪

落日的多重绿闪

2023年3月28日 A Multiple Green Flash Sunset Image Credit & Copyright: T. Slovinský & P. Horálek (IoP Opava); CTIO, NOIRLab, NSF, AURA Explanation: Yes, but can your green flash do this? A green flash at sunset is a rare event that many Sun watchers pride themselves on having seen. Once thought to be a myth, a green flash is now understood to occur when the Earth’s atmosphere acts like both a prism and a lens. Different atmospheric layers create altitude-variable refraction that takes light from the top of the Sun and disperses its colors, creates two images, and magnifies it in just the right way to make a thin sliver appear green just before it disappears. Pictured, though, is an even more unusual sunset. From the…

智利火山上空的南十字

智利火山上空的南十字

2021年01月25日 Southern Cross over Chilean Volcano Image Credit & Copyright: Tomáš Slovinský Explanation: Have you ever seen the Southern Cross? This famous four-star icon is best seen from Earth’s Southern Hemisphere. The featured image was taken last month in Chile and captures the Southern Cross just to the left of erupting Villarrica, one of the most active volcanos in our Solar System. Connecting the reddest Southern Cross star Gacrux through the brightest star Acrux points near the most southern location in the sky: the South Celestial Pole (SCP), around which all southern stars appear to spin as the Earth turns. In modern times, no bright star resides near the SCP, unlike in the north where bright Polaris now appears near the NCP. Extending the Gacrux…

智利上空的双子座流星

智利上空的双子座流星

2019 December 8 Geminid Meteors over Chile Image Credit & Copyright: Yuri Beletsky (Carnegie Las Campanas Observatory, TWAN) Explanation: Are meteors streaming out from a point in the sky? Yes, in a way. When the Earth crosses a stream of Sun-orbiting meteors, these meteors appear to come from the direction of the stream — with the directional point called the radiant. An example occurs every mid-December for the Geminids meteor shower, as apparent in the featured image. Recorded near the shower’s peak in 2013, the featured skyscape captures Gemini’s shooting stars in a four-hour composite from the dark skies of the Las Campanas Observatory in Chile. In the foreground the 2.5-meter du Pont Telescope is visible as well as the 1-meter SWOPE telescope. The skies…

回顾2019年智利日全食

回顾2019年智利日全食

当地时间2019年7月2日,智利拉西亚天文台(La Silla Observatory)拍摄到的日全食,全世界大约1000人在拉西亚天文台观看了日全食。下面这段完整视频由欧洲南方天文台所记录。 注:小程序暂时无法观看该视频,请点击右下角“···”符号后点击“阅读原文”复制页面链接,然后粘贴到浏览器中观看。