蛇夫座的黑暗面纱
(原标题: A Dark Veil in Ophiuchus)
2025-08-29
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发射区Sh2-27弥漫的氢- α辉光充满了这幅宇宙景象。视野横跨星云丰富的蛇夫座近3度，朝向银河系中心。一层由星际尘埃云组成的黑暗面纱覆盖在前景上，主要被美国天文学家贝弗利·林兹从1962年的暗星云目录中识别为LDN 234和LDN 204。Sh2-27本身是一个巨大而暗淡的HII区域，围绕着失控的o型恒星蛇夫座ζ。连同蛇夫ζ座HII区域，LDN 234和LDN 204可能距离我们500光年左右。在这个距离上，这个望远镜框架大约有25光年宽。
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The diffuse hydrogen-alpha glow of emission region Sh2-27 fills this cosmic scene. The field of view spans nearly 3 degrees across the nebula-rich constellation Ophiuchus toward the central Milky Way. A Dark Veil of wispy interstellar dust clouds draped across the foreground is chiefly identified as LDN 234 and LDN 204 from the 1962 Catalog of Dark Nebulae by American astronomer Beverly Lynds. Sh2-27 itself is the large but faint HII region surrounding runaway O-type star Zeta Ophiuchi. Along with the Zeta Oph HII region, LDN 234 and LDN 204 are likely 500 or so light-years away. At that distance, this telescopic frame would be about 25 light-years wide.
© Katelyn Beecroft