NGC 7814 :小桑布萊羅
NGC 7814: Little Sombrero
來源:Mike Selby|發表日期:2025-01-23
將您的望遠鏡對準高飛的飛馬座,您就能發現這片由銀河系恆星和遙遠星系組成的宇宙廣袤地帶。NGC 7814 位於銳利視場的中心,幾乎可以被滿月覆蓋。NGC 7814 有時也被稱為 "小松布萊羅",因為它與更明亮、更著名的 M 104 --松布萊羅星系非常相似。桑布萊羅星系和小桑布萊羅星系都是螺旋星系,都有廣泛的光環和中央隆起,被一個薄薄的圓盤切割,輪廓中還有更細的塵埃道。事實上,NGC 7814 距離地球約 4000 萬光年,直徑約為 6 萬光年。這實際上使得小松布里羅的物理大小與它的同名天體差不多,只是因為距離更遠,所以顯得更小更暗。
原文:Point your telescope toward the high flying constellation Pegasus and you can find this cosmic expanse of Milky Way stars and distant galaxies. NGC 7814 is centered in the sharp field of view that would almost be covered by a full moon. NGC 7814 is sometimes called the Little Sombrero for its resemblance to the brighter more famous M104, the Sombrero Galaxy. Both Sombrero and Little Sombrero are spiral galaxies seen edge-on, and both have extensive halos and central bulges cut by a thin disk with thinner dust lanes in silhouette. In fact, NGC 7814 is some 40 million light-years away and an estimated 60,000 light-years across. That actually makes the Little Sombrero about the same physical size as its better known namesake, appearing smaller and fainter only because it is farther away.
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