NGC 6559：泻湖以东
(原标题: NGC 6559: East of the Lagoon)
2021-10-07
浏览次数: 45
把你的望远镜移到泻湖星云的东边，在人马座丰富的星空中找到这迷人的视野，朝向银河系的中心。当然，泻湖星云也被称为M8，是梅西耶著名的明亮星云和星团目录中列出的第八个天体。靠近天空，但比M8略暗，这个星云复合体被排除在梅西耶的名单之外。它包含模糊的尘埃，突出的红色发射和蓝色反射星云的恒星形成区NGC 6559在右边。和M8一样，NGC 6559位于一个巨大分子云的边缘，距离地球约5000光年。在这个距离上，这个近3个满月宽的望远镜框架将跨越约130光年。全球月球派对：美国宇航局的夜空网络：10月9日星期六
查看原文解释
Slide your telescope just east of the Lagoon Nebula to find this alluring field of view in the rich starfields of the constellation Sagittarius toward the central Milky Way. Of course the Lagoon nebula is also known as M8, the eighth object listed in Charles Messier's famous catalog of bright nebulae and star clusters. Close on the sky but slightly fainter than M8, this complex of nebulae was left out of Messier's list though. It contains obscuring dust, striking red emission and blue reflection nebulae of star-forming region NGC 6559 at right. Like M8, NGC 6559 is located about 5,000 light-years away along the edge of a large molecular cloud. At that distance, this telescopic frame nearly 3 full moons wide would span about 130 light-years. Global Moon Party: NASA's Night Sky Network: Saturday, October 9
© Roberto Sartori