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It had been thought that NGC 2808, like typical globular clusters, contains only one generation of stars formed simultaneously from the same material. In 2007, a team of astronomers led by Giampaolo Piotto of the University of Padua in Italy investigated Hubble Space Telescope images of NGC 2808 taken in 2005 and 2006 with Hubble's Advanced Camera for Surveys.
In reality, many population I stars are also found mixed in with the older population II stars. In 1944 , Walter Baade categorized groups of stars within the Milky Way into stellar populations . In the abstract of the article by Baade, he recognizes that Jan Oort originally conceived this type of classification in 1926 .
The age of the oldest known stars approaches the age of the universe, about 13.8 billion years. Some of these are among the first stars from reionization (the stellar dawn), ending the Dark Ages about 370,000 years after the Big Bang. [1] This list includes stars older than 12 billion years, or about 87% of the age of the universe.
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Fire departments in the state of Kentucky, United States. Pages in category "Fire departments in Kentucky" The following 8 pages are in this category, out of 8 total.
General B. Chance Saltzman, the Chief of Space Operations for the United States Space Force, speaks after being inducted into the Kentucky Aviation Hall of Fame at the Kentucky Aviation Museum in ...
HE 1523-0901 is the designation given to a red giant star in the Milky Way galaxy approximately 9,900 light-years from Earth. It is thought to be a second generation, Population II, or metal-poor, star ([Fe/H] = −2.95). The star was found in the sample of bright metal-poor halo stars from the Hamburg/ESO Survey by Anna Frebel and
The Louisville Division of Fire, commonly known as the Louisville Fire Department or Louisville Fire & Rescue (abbreviated LFD or LFR), is the sole fire suppression agency for the city of Louisville, Kentucky and is one of eight fire departments within the Louisville-Jefferson County, Kentucky metropolitan area. The Louisville Division of Fire ...