车轮星系

2022年8月24日 The Cartwheel Galaxy from Webb Image Credit: NASA, ESA, CSA, STScI, Webb ERO Production Team Explanation: To some, it looks like a wheel of a cart. In fact, because of its outward appearance, the presence of a central galaxy, and its connection with what looks like the spokes of a wheel, the galaxy on the right is known as the Cartwheel Galaxy. To others, however, it looks like a complicated interaction between galaxies awaiting explanation. Along with the two galaxies on the left, the Cartwheel is part of a group of galaxies about 500 million light years away in the constellation Sculptor. The large galaxy’s rim spans over 100,000 light years and is composed of star forming regions filled with extremely bright and massive…