鲁宾的第一眼：射手座的天空景观
(原标题: Rubin's First Look: A Sagittarius Skyscape)
2025-06-25
浏览次数: 25
这张星际天空景观横跨人马座和银河系中心拥挤的星空，跨度超过4度。新成立的美国国家科学基金会-能源部维拉·c·鲁宾天文台首次拍摄的图像显示，明亮的星云和星团包括望远镜宇宙之旅中著名的站点：梅西耶8号和梅西耶20号。梅西耶8是一个直径超过100光年的膨胀恒星形成区域，也被称为泻湖星云。大约4000光年远的泻湖星云中有一个由年轻的大质量恒星组成的引人注目的星团。它们强烈的辐射和恒星风激发并搅动着这个宇宙泻湖汹涌的深处。梅西耶20的流行绰号是“三叉戟”。三裂星云被黑暗的星际尘埃带分成三部分，发光的氢气形成了它的主要红色。但三裂星团中形成鲜明对比的蓝色色调是由于尘埃反射的星光。鲁宾天文台在4个晚上（5月1日至4日）的部分时间里访问了triid - lagoon区域，获取了所有图像数据。在全分辨率下，鲁宾的壮丽的人马座天空景观是84,000像素宽，51,500像素高。
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This interstellar skyscape spans over 4 degrees across crowded starfields toward the constellation Sagittarius and the central Milky Way. A First Look image captured at the new NSF–DOE Vera C. Rubin Observatory, the bright nebulae and star clusters featured include famous stops on telescopic tours of the cosmos: Messier 8 and Messier 20. An expansive star-forming region over a hundred light-years across, Messier 8 is also known as the Lagoon Nebula. About 4,000 light-years away the Lagoon Nebula harbors a remarkable cluster of young, massive stars. Their intense radiation and stellar winds energize and agitate this cosmic lagoon's turbulent depths. Messier 20's popular moniker is the Trifid. Divided into three parts by dark interstellar dust lanes, the Trifid Nebula's glowing hydrogen gas creates its dominant red color. But contrasting blue hues in the colorful Trifid are due to dust reflected starlight. The Rubin Observatory visited the Trifid-Lagoon field to acquire all the image data during parts of four nights (May 1-4). At full resolution, Rubin's magnificent Sagittarius skyscape is 84,000 pixels wide and 51,500 pixels tall.