Image of the Day: An Awesome Galaxy (and Its Odd Companion )–Twice the Size of the Milky Way




This spectacular image of the large spiral galaxy NGC 1232 is based on three exposures in ultra-violet, blue and red light, respectively. The colours of the different regions are well visible : the central areas contain older stars of reddish colour, while the spiral arms are populated by young, blue stars and many star-forming regions. Note the distorted companion galaxy on the left side, shaped like the greek letter "theta".

NGC 1232 is located 20ยบ south of the celestial equator, in the constellation Eridanus -the River. The distance is about 100 million light-years, but the excellent optical quality of the VLT and FORS allows ESO astronomers to see an incredible wealth of details. 

The edge of the field shown corresponds to about 200,000 light-years, or about twice the size of the Milky Way galaxy.

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