Arp 273 Interacting Galaxies In Andromeda. Desk Mat
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Arp 273 interacting galaxies in Andromeda. The larger of the two galaxies, UGC 1810, shows a large spiral galaxy with a disk that is distorted into a rose-like shape by the gravitational tidal pull of the companion galaxy below it, known as UGC 1813. A swath of blue jewel-like points across the top is the combined light from clusters of intensely bright and hot young blue stars. These massive stars glow fiercely in ultraviolet light. The smaller, nearly edge-on companion shows distinct signs of intense star formation at its nucleus, perhaps triggered by the encounter with the companion galaxy.
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