2025年1月10日
Young Stars, Dark Nebulae
Image Credit & Copyright: Long Xin
Explanation: An unassuming region in the constellation Taurus holds these dark and dusty nebulae. Scattered through the scene, stars in multiple star systems are forming within their natal Taurus molecular cloud complex some 450 light-years away. Millions of years young and still going through stellar adolescence, the stars are variable in brightness and in the late phases of their gravitational collapse. Known as T-Tauri class stars they tend to be faint and take on a yellowish hue in the image. One of the brightest T-Tauri stars in Taurus, V773 (aka HD283447) is near the center of the telescopic frame that spans over 1 degree. Toward the top is the dense, dark marking on the sky cataloged as Barnard 209.
Tomorrow’s picture: light-weekend
金牛座的年轻恒星与暗星云
影像提供与版权: Long Xin
说明: 这些黝黑的尘埃云位于金牛座一个不起眼的区域里。散布在影像中的多恒星系统之恒星，正形成于离地球约450光年远的金牛座分子云复合体之内。这些仅数百万年稚龄的青少年期恒星，亮度变化不定，正处于重力坍缩阶段的晚期。在这幅影像里，这些分类为金牛座T型星（T-Tauri）的恒星，通常带着昏暗泛黄的色泽。金牛座中最明亮的金牛座T型星之一为V773 (aka HD283447)，它位在这片跨幅1度多的望远镜视野的中心附近。视野顶部附近的致密暗星云，其编录号则为Barnard 209。
明日的图片: light-weekend
