泛星计画的全天图
影像来源与版权:R. White (STScI) and the PS1 Science Consortium

说明:这片天空景观组合自泛星天文台的影像数据。拍摄这些影像的仪器,是位在地球茂宜岛海勒卡拉山顶的1.8米泛星望远镜。在这张全天投影图里,地球的北天极位在中心而从这座峡谷之岛(茂宜岛)看出去,圆形的外侧边界为赤纬-30度的南限界线。影像中,位在我们银河系盘面的繁星和尘埃云垂直贯过这片视野,底端的明亮突起是银河中心。组合出这片景观的影像数据,来自泛星计画的第2期数据库,是由地球目前最大型的泛星数位巡天计画,用了4年的时间才完成。在2017年,天文学家曾使用泛星观测数据,找到了第一颗确认来自星际空间的访客─’斥候星(Oumuamua)。
翻译:“每日一天文图”成大物理分站

Pan-STARRS Across the Sky
Image Credit & Copyright: R. White (STScI) and the PS1 Science Consortium

Explanation: This astronomical sky spanning view is a mosaic from the Pan-STARRS observatory. The images were recorded with its 1.8 meter telescope at the summit of Haleakala on planet Earth’s island of Maui. In fact, Earth’s north celestial pole is centered in this across-the-sky projection. A declination of -30 degrees, the southern horizon limit as seen from the Hawaiian Valley Isle, defines the circular outer edge. Crowded starfields and cosmic dust clouds along the plane of our Milky Way galaxy stretch across the scene with the bright bulge of the galactic center at the bottom. Compiled over four years, the image data represent the second edition of data from Pan-STARRS (Panoramic Survey Telescope & Rapid Response System), currently the planet’s largest digital sky survey. In 2017 Pan-STARRS was used to first recognize the interstellar voyage of ‘Oumuamua, visitor to our Solar System.
Astronomy Picture of the Day 04/05/2019