2019年01月01日:红外光波段的草帽星系-（The Sombrero Galaxy in Infrared）

2019年01月01日:红外光波段的草帽星系-（The Sombrero Galaxy in Infrared）--原图下载

Image Credit: R. Kennicutt(Steward Obs.) et al.,SSC,JPL,Caltech,NASA
说明: 这个飘浮环的大小和星系相当。更具体的说，它是草帽星系之一部分。而很上相的草帽星系，则是我们附近的室女座星系团里最大的星系之一。可见光波段环绕在草帽星系腰部的黝黑尘埃带，在红外光波段变得格外明亮。在这幅经过增锐的主题影像里，合成自史匹哲太空望远镜所记录、并以假色呈现的红外辉光，与美国航太总署．哈伯太空望远镜在先前拍摄的可见光照片。草帽星系又称为M104，离我们约有2千8百万光年远，大小则约有5万光年。M104位在北天的室女座方向，用小望远镜就能看见它。 (Sombrero Galaxy 墨西哥帽星系、草帽星系或宽边帽星系)

原文：

Image Credit: R. Kennicutt(Steward Obs.) et al.,SSC,JPL,Caltech,NASA
Explanation: This floating ring is the size of a galaxy. In fact, it is a galaxy -- or at least part of one: the photogenicSombrero Galaxy,one of the largest galaxies in the nearbyVirgo Cluster of Galaxies. The dark band ofdust that obscures the mid-section of theSombrero Galaxy in optical light actuallyglows brightly in infrared light. The featured image, digitally sharpened, shows theinfraredglow, recently recorded by the orbitingSpitzer Space Telescope, superposed in false-color on anexisting image taken byNASA's Hubble Space Telescopein optical light.The SombreroGalaxy, also known asM104, spans about 50,000 light years across and lies 28 million light years away. M104can be seen with a small telescope in the direction of theconstellation Virgo.