Copyright:
Petr Hor�lek;
Rollover Annotation: Judy Schmidt
原文:
Is there anything interesting to see in the direction opposite the Sun? One night last month, there were quite a few things. First, the red-glowing orb on the lower right of the featured image is the full moon, darkened and reddened because it has entered Earth’s shadow. Beyond Earth’s cone of darkness are backscattering dust particles orbiting the Sun that standout with a diffuse glow called the gegenschein, visible as a faint band rising from the central horizon and passing behind the Moon. A nearly horizontal stripe of green airglow is also discernable just above the horizon, partly blocked by blowing orange sand. Visible in the distant sky as the blue dot near the top of the image is the star Sirius, while the central band of our Milky Way Galaxy arches up on the image left and down again on the right. The fuzzy light patches just left of center are the Large and Small Magellanic Clouds. Red emission nebulas too numerous to mention are scattered about the sky, but are labelled in a companion annotated image. In the image foreground is the desolate Deadvlei region of the Namib-Naukluft National Park in Namibia, featuring the astrophotographer himself surveying a land and sky so amazing that he described it as one of the top experiences of his life. Quiz: Astronomy Picture of the Day Caption or Harlequin Novel?
中文翻譯:
🌌✨ 今晚的星空多麼迷人！在太陽的對面方向，我們可以觀賞到幾樣驚人的天文現象。首先，畫面右下方的紅色光環是滿月，因為進入地球的陰影而顯得黯淡而紅潤。在地球陰影的外圍，有微小的塵埃粒子環繞著太陽，形成了一道微弱的發光帶，稱為“反向光”（gegenschein），從中央地平線升起，並穿過月亮的後面。
在地平線上方，我們還能辨識到一條近乎水平的綠色空氣輻射帶，部分被飄浮的橙色沙塵阻擋。畫面上方的藍點便是星星天狼星（Sirius），而我們的銀河系的中央帶則在左側優雅地拱起，然後向右側延伸。偏左中央處的朦朧光點是大麥哲倫雲（Large Magellanic Cloud）和小麥哲倫雲（Small Magellanic Cloud）。畫面中散落著眾多紅色發射星雲，但在伴隨的標註圖像中都有詳細標示。
畫面前景是納米比亞納庫魯夫國家公園的荒涼德德弗利（Deadvlei）地區，攝影師自己也在這美麗的天地中駐足觀賞，形容這一經歷為他人生中最精彩的時刻之一。 🌠
#星空 #天文現象 #反向光 #地球 #銀河系 #滿月 #天狼星 #德德弗利 #納米比亞 #攝影師 #最佳經歷
來源:NASA每日圖片
