This photo of the nearby Sculptor Galaxy spans 65,000 light-years
Scientists used the European Southern Observatory's Very Large Telescope to observe the galaxy for some 50 hours, stitching together more than 100 exposures to create the picture. The image spans 65,000 light-years – almost the entire galaxy. A light-year is 5.8 trillion miles. Sculptor–officially labeled NGC 253–is considered a starburst galaxy, one heavy with stellar action. It's located 11 million light-years away in the Southern Hemisphere's constellation Sculptor and easy to view with binoculars or small telescopes.
'The Sculptor galaxy is in a sweet spot,' the observatory's Enrico Congiu, who led the research, said in a statement. 'It is close enough that we can resolve its internal structure and study its building blocks with incredible detail, but at the same time big enough that we can still see it as a whole system.'
The more shades of color from stars, gas, and dust in a galaxy, the more clues to their age, composition, and motion, according to the scientists. Sculptor's latest snapshot contains thousands of colors–a glowing montage of purples, pinks, and yellows–compared with just a handful for traditional pictures. The team has already discovered 500 planetary nebulae, clouds of gas and dust from dying stars that can serve as cosmic mile markers. Their research has been accepted for publication in the journal Astronomy & Astrophysics.
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