HD 190228
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. HD 190228 is a star located in the constellation Vulpecula. Its apparent magnitude is 7.31 and the absolute magnitude is 3.34. The distance is 204 light years from Earth. The star is definitely old with age over 10 billion years and it is metal-poor. In 2000, it was announced that a giant planet was orbiting the star with a minimum mass of 5 Jupiter masses, designated HD 190228 b. The planetary nature of the object was questioned because of the low metal content of…mehr

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. HD 190228 is a star located in the constellation Vulpecula. Its apparent magnitude is 7.31 and the absolute magnitude is 3.34. The distance is 204 light years from Earth. The star is definitely old with age over 10 billion years and it is metal-poor. In 2000, it was announced that a giant planet was orbiting the star with a minimum mass of 5 Jupiter masses, designated HD 190228 b. The planetary nature of the object was questioned because of the low metal content of the star: giant planets are more likely to be found around high-metallicity stars, so it was argued that the object was more likely to be a brown dwarf.