A spiral galaxy is shown in great detail. Visible are blue star clusters, red nebulas, and brown dust in a spiral pattern around the image and galaxy center. Please see the explanation for more detailed information.
一座螺旋星系被清晰地展现出来。可见蓝色的星团、红色的星云以及棕色的尘埃，以螺旋形态围绕图像和星系中心分布。有关更多详细信息，请参阅说明。
2023年4月1日 NGC 2442: Galaxy in Volans Image Credit & Copyright: Nicolas Rolland, Martin Pugh Explanation: Distorted galaxy NGC 2442 can be found in the southern constellation of the flying fish, (Piscis) Volans. Located about 50 million light-years away, the galaxy’s two spiral arms extending from a pronounced central bar give it a hook-shaped appearance in this deep colorful image, with spiky foreground stars scattered across the telescopic field of view. The image also reveals the distant galaxy’s obscuring dust lanes, young blue star clusters and reddish star forming regions surrounding a core of yellowish light from an older population of stars. But the star forming regions seem more concentrated along the drawn-out (upper right) spiral arm. The distorted structure is likely the result of an…
2022年12月22日 NGC 1365: Majestic Island Universe Image Credit & Copyright: Martin Pugh Explanation: Barred spiral galaxy NGC 1365 is truly a majestic island universe some 200,000 light-years across. Located a mere 60 million light-years away toward the faint but heated constellation Fornax, NGC 1365 is a dominant member of the well-studied Fornax Cluster of galaxies. This impressively sharp color image shows the intense, reddish star forming regions near the ends of central bar and along the spiral arms, with details of the obscuring dust lanes cutting across the galaxy’s bright core. At the core lies a supermassive black hole. Astronomers think NGC 1365’s prominent bar plays a crucial role in the galaxy’s evolution, drawing gas and dust into a star-forming maelstrom and ultimately feeding material…
2022年10月16日 Barred Spiral Galaxy NGC 1300 Image Credit: NASA ESA, Hubble Heritage Explanation: Across the center of this spiral galaxy is a bar. And at the center of this bar is smaller spiral. And at the center of that spiral is a supermassive black hole. This all happens in the big, beautiful, barred spiral galaxy cataloged as NGC 1300, a galaxy that lies some 70 million light-years away toward the constellation of the river Eridanus. This Hubble Space Telescope composite view of the gorgeous island universe is one of the most detailed Hubble images ever made of a complete galaxy. NGC 1300 spans over 100,000 light-years and the Hubble image reveals striking details of the galaxy’s dominant central bar and majestic spiral arms. How the…
2021年01月08日 NGC 1365: Majestic Island Universe Image Credit & Copyright: Mike Selby, Leonardo Orazi Explanation: Barred spiral galaxy NGC 1365 is truly a majestic island universe some 200,000 light-years across. Located a mere 60 million light-years away toward the chemical constellation Fornax, NGC 1365 is a dominant member of the well-studied Fornax Cluster of galaxies. This impressively sharp color image shows the intense, reddish star forming regions near the ends of central bar and along the spiral arms, with details of the obscuring dust lanes cutting across the galaxy’s bright core. At the core lies a supermassive black hole. Astronomers think NGC 1365’s prominent bar plays a crucial role in the galaxy’s evolution, drawing gas and dust into a star-forming maelstrom and ultimately feeding material…
2020 June 11 Barred Spiral Galaxy NGC 1300 Image Credit: Hubble Heritage Team, ESA, NASA Explanation: Big, beautiful, barred spiral galaxy NGC 1300 lies some 70 million light-years away on the banks of the constellation Eridanus. This Hubble Space Telescope composite view of the gorgeous island universe is one of the largest Hubble images ever made of a complete galaxy. NGC 1300 spans over 100,000 light-years and the Hubble image reveals striking details of the galaxy’s dominant central bar and majestic spiral arms. In fact, on close inspection the nucleus of this classic barred spiral itself shows a remarkable region of spiral structure about 3,000 light-years across. Like other spiral galaxies, including our own Milky Way, NGC 1300 is thought to have a supermassive central…
2020 April 6 NGC 1672: Barred Spiral Galaxy from Hubble Image Credit: Hubble Legacy Archive, NASA, ESA; Processing & Copyright: Daniel Nobre Explanation: Many spiral galaxies have bars across their centers. Even our own Milky Way Galaxy is thought to have a modest central bar. Prominently barred spiral galaxy NGC 1672, featured here, was captured in spectacular detail in an image taken by the orbiting Hubble Space Telescope. Visible are dark filamentary dust lanes, young clusters of bright blue stars, red emission nebulas of glowing hydrogen gas, a long bright bar of stars across the center, and a bright active nucleus that likely houses a supermassive black hole. Light takes about 60 million years to reach us from NGC 1672, which spans about 75,000 light…
这张引人注目的照片是由NASA/ESA哈勃太空望远镜的广域相机3 (WFC3)拍摄的，这是2009年安装在哈勃太空望远镜上的一个功能强大的仪器。WFC3为哈勃太空望远镜拍摄了许多许多最令人惊叹和极具标志性的照片。 如图所示，NGC 7773是一个棒旋星系的美丽例子。一个发光的棒状结构显著地穿过星系明亮的核心，延伸到NGC 7773的横扫而过的类似风车的螺旋臂的内部边界。天文学家认为，这些棒状结构出现在星系生命周期的后期，因为恒星形成物质向星系中心移动——较年轻的螺旋不像较老的螺旋那样经常具有棒状结构，这表明棒状结构是星系成熟的标志。它们也被认为是恒星的摇篮，因为它们闪耀着明亮的光芒，意味着有大量年轻的恒星。 我们的星系，银河系，被认为是像NGC 7773一样的棒旋星系。通过研究像NGC 7773这样遍及整个宇宙的星系样本，研究人员希望更多地了解塑造——并继续塑造——宇宙家园的过程。 文字来源: ESA (European Space Agency) 图像来源: ESA/Hubble & NASA, J. Walsh This striking image was taken by the NASA/ESA Hubble Space Telescope’s Wide Field Camera 3 (WFC3), a powerful instrument installed on the telescope in 2009. WFC3 is responsible for many of Hubble’s most breathtaking and iconic photographs. Shown here, NGC 7773 is a beautiful example of a barred spiral galaxy. A luminous bar-shaped structure cuts prominently through the galaxy’s bright core, extending to the inner boundary of NGC 7773’s sweeping, pinwheel-like spiral arms. Astronomers think that these bar structures emerge later in the lifetime of a galaxy, as star-forming material makes its way towards the galactic center — younger spirals do not feature barred structures as…
