Copyright:
原文:
Many bright nebulae and star clusters in planet Earth’s sky are associated with the name of astronomer Charles Messier, from his famous 18th century catalog. His name is also given to these two large and remarkable craters on the Moon. Standouts in the dark, smooth lunar Sea of Fertility or Mare Fecunditatis, Messier (left) and Messier A have dimensions of 15 by 8 and 16 by 11 kilometers respectively. Their elongated shapes are explained by an extremely shallow-angle trajectory followed by the impactor, moving left to right, that gouged out the craters. The shallow impact also resulted in two bright rays of material extending along the surface to the right, beyond the picture. Intended to be viewed with red/blue glasses (red for the left eye), this striking stereo picture of the crater pair was recently created from high resolution scans of two images (AS11-42-6304, AS11-42-6305) taken during the Apollo 11 mission to the moon.
中文翻譯:
🌌 許多在地球夜空中明亮的星雲和星團，都與18世紀天文學家Charles Messier的著名目錄有關。他的名字也被用來命名月球上的兩個大型顯著隕石坑：Messier和Messier A。這兩個隕石坑位於黑暗而平滑的肥沃海（Mare Fecunditatis），尺寸分別為15 x 8和16 x 11公里。它們的橢圓形狀是由於撞擊體以極淺的角度從左向右撞擊，從而形成了這些隕石坑。這種淺角度的撞擊還導致了兩條明亮的射線物質向右延伸，超出了圖片邊界。這幅引人注目的立體圖片是最近從阿波羅11號任務拍攝的兩張高解析度圖像（AS11-42-6304，AS11-42-6305）掃描而成，旨在使用紅藍眼鏡觀賞（左眼用紅色）。
#Messier #MoonCraters #Apollo11 #LunarExploration #MareFecunditatis #SpacePhotography #Astronomy #StereoImage #CelestialWonder
來源:NASA每日圖片
