designed by Lluís Romero Ventura
The Earth astrosirius@astrosirius.org

Galaxies

& Beyond

ARP 273 GALAXY

The NASA Hubble Space Telescope turned its keen eye to an especially photogenic group of interacting galaxies called Arp 273. The larger of the spiral galaxies, known as UGC 1810, has a disk that is tidally 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 jewels 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.

ARP GALAXY

Data: HLA - Hubble Processing: By Lluís Romero