Copyright:
Michael Connelley
(U. Hawaii)
原文:
How can the Moon rise through a mountain? It cannot — what was photographed here is a moonrise through the shadow of a large volcano. The volcano is Mauna Kea, Hawai’i, USA, a frequent spot for spectacular photographs since it is arguably the premier observing location on planet Earth. The Sun has just set in the opposite direction, behind the camera. Additionally, the Moon has just passed full phase — were it precisely at full phase it would rise, possibly eclipsed, at the very peak of the shadow. The Moon is actually rising in the triangular shadow cone of the volcano, a corridor of darkness that tapers off in the distance like converging train tracks. The Moon is too large and too far away to be affected by the shadow of the volcano. Refraction of moonlight through the Earth’s atmosphere makes the Moon appear slightly oval. Cinder cones from old volcanic eruptions are visible in the foreground.
中文翻譯:
如何讓月亮從山中升起呢？其實並不可能——在這張照片中拍攝的是月亮從一座大型火山的陰影中升起。這座火山是夏威夷的瑪納凱亞（Mauna Kea），因其無可比擬的觀測條件而成為拍攝壯觀照片的熱門地點。此時，太陽剛剛在攝影機後方落下。月亮剛剛過了滿月階段——若是精確的滿月，它可能會在陰影的最高點升起，甚至可能出現日食。事實上，月亮是從火山的三角形陰影錐中升起，這是一條逐漸收窄的黑暗走廊，隨著距離的變化而如同會聚的火車軌道。月亮距離地球太遠，與火山的陰影毫無關係。月光穿過地球的大氣層時折射，使月亮呈現出微微橢圓的形狀。在前景中，還可以看到老火山噴發留下的圓錐形地形。
#瑪納凱亞 #火山 #月亮升起 #天文攝影 #自然之美 #夏威夷 #壯觀景象 #月光 #攝影愛好者
來源:NASA每日圖片
