日出带环食

2023年9月24日

A Ring of Fire Sunrise Solar Eclipse
Video Credit: Colin Legg & Geoff Sims; Music: Peter Nanasi

Explanation: What’s rising above the horizon behind those clouds? It’s the Sun. Most sunrises don’t look like this, though, because most sunrises don’t include the Moon. In the early morning of 2013 May 10, however, from Western Australia, the Moon was between the Earth and the rising Sun. At times, it would be hard for the uninformed to understand what was happening. In an annular eclipse, the Moon is too far from the Earth to block the entire Sun, and at most leaves a ring of fire where sunlight pours out around every edge of the Moon. The featured time-lapse video also recorded the eclipse through the high refraction of the Earth’s atmosphere just above the horizon, making the unusual rising Sun and Moon appear also flattened. As the video continues, the Sun continues to rise, while the Sun and Moon begin to separate. The next annular solar eclipse will occur in less than three weeks. On Saturday, October 14, a ring of fire will be visible through clear skies from a thin swath crossing both North and South America.

Tour the Universe: Random APOD Generator

Tomorrow’s picture: big blue bird

日出带环食
影片提供: Colin Legg & Geoff Sims; 配乐: Peter Nanasi

说明: 在乌云笼罩的地平线后方缓缓升起的是什么？太阳！不过，大部分的日出并非如是，因为日常东升的太阳不会有月亮为伴。在2013年5月10日的清晨，从西澳大利亚看出去，月亮位于地球和东升的太阳之间。当时东升的旭日不但受到月亮的掩食，也时时受到地球浮云的遮掩，因此不知情者难以辨其本尊。日环食之所以会发生，是因为月亮离地球太远而无法遮住整个日盘，在食甚时，阳光会从月盘的四周漏出来，形成了火之环的景观。这部延时主题影片，除了记录此次日食的历程，也由于所拍摄的日食景象都得穿过地平面上方的高折射率地球大气，因此东升的太阳和月亮的形状皆偏扁。随着影片持续播放，太阳也不停的攀高，最后太阳和月亮开始分离。距今不到3个星期将再次发生日环食。10月14日（星期六）从穿过北美洲及南美洲的狭窄食带看出去，如果天空清朗可见到火之环的景观。