NASAのインスタグラム(nasagoddard) - 4月1日 04時35分

This video sequence zooms into the Hubble Space Telescope view of the galactic core.

More than half a million stars at its core. Except for a few blue, foreground stars, the stars are part of the Milky Way's nuclear star cluster, the most massive and densest stellar cluster in our galaxy. Located 27,000 light-years away, this region is so packed with stars, it is equivalent to having a million suns crammed into the volume of space between us and our closest stellar neighbor, Alpha Centauri, 4.3 light-years away. At the very hub of our galaxy, this star cluster surrounds the Milky Way's central supermassive black hole, which is about 4 million times the mass of our sun.

Credit: NASA, ESA, A. Fujii, Digitized Sky Survey (DSS), STScI/AURA, Palomar/Caltech, UKSTU/AAO, NASA/JPL-Caltech/S. Stolovy (Spitzer Science Center/Caltech), Q.D. Wang (University of Massachusetts, Amherst), the Hubble Heritage Team (STScI/AURA), T. Do and A. Ghez (UCLA), and V. Bajaj (STScI) #nasagoddard #space #hubble

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