News tagged with parallax

Distance measurement of a microlensing event

The distance to celestial objects is key to calculating their intrinsic properties like mass and luminosity. Distance, unfortunately, is also one of the most difficult parameters to measure. The most direct ...

dateApr 06, 2015 in Astronomy
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Nearby ancient star is almost as old as the Universe

A metal-poor star located merely 190 light-years from the Sun is 14.46+-0.80 billion years old, which implies that the star is nearly as old as the Universe! Those results emerged from a new study led by Howard Bond. Such metal-poor stars are (s ...

dateFeb 25, 2013 in Astronomy
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