The bright variable star V 372 Orionis takes center stage in this image from the NASA/ESA Hubble Space Telescope, which has also captured a smaller companion star in the upper left of this image. Both stars lie in the Orion Nebula, a colossal region of star formation roughly 1,450 light-years from Earth. V 372 Orionis is a particular type of variable star kn...
NGC 346是附近星系中最活跃的恒星形成区域之一,充满了神秘感。现在,随着NASA的詹姆斯·韦伯太空望远镜的新发现的新发现,它不再那么神秘了。 NCG 346位于小麦哲伦星云(SMC),一个靠近银河系的矮星系。与银河系相比,SMC包含的比氢或氦(天文学家称之为金属)更重的元素浓度更低。由于太空中的尘埃颗粒主要由金属组成,科学家们预计尘埃数量会很少,而且很难探测到。韦伯的新数据显示了相反的情况。 NGC 346是一个动态星团,位于20万光年之外的一个星云内,这张照片是由NASA的詹姆斯·韦伯太空望远镜近红外照相机(NIRCam)拍摄。韦伯揭示了比先前预期的更多的构造块的存在,不仅是恒星,还有行星,以充满尘埃和氢的云的形式存在。图中的羽状气体和弧形气体包含两种类型氢。粉红色气体代表带电的氢,其温度通常高达约10,...
The scattered stars of the globular cluster NGC 6355 are strewn across this image from the NASA/ESA Hubble Space Telescope. NGC 6355 is a galactic globular cluster that resides in our Milky Way galaxy’s inner regions. It is less than 50,000 light-years from Earth in the constellation Ophiuchus. Globular clusters are stable, tightly bound groups of tens...
A portion of the open cluster NGC 6530 appears as a roiling wall of smoke studded with stars in this image from the NASA/ESA Hubble Space Telescope. NGC 6530 is a collection of several thousand stars lying around 4,350 light-years from Earth in the constellation Sagittarius. The cluster is set within the larger Lagoon Nebula, a gigantic interstellar cloud of...