Image source: NASA
NGC 7129 is a reflection nebula (dust cloud reflecting energy from one or more stars close to it) located 3,300 light-years from Earth, located in the constellation Cepheus and discovered on October 18, 1794 By the German-British astronomer William Herschel. A relevant feature of this nebula is the short age of its stars, since the vast majority is barely a million years old, which is extremely small in terms of stellar ages.
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Image source: NASA
