The Gaia three billion stars 3D Map

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brian livesey
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Joined: Mon Jan 09, 2006 11:05 am
Location: Lancashire

The Gaia three billion stars 3D Map

Post by brian livesey »

When the European Space Agency launched its Gaia Astrometry Space Observatory in 2013, the task of its two telescopes has been to measure the positions, radial velocities and spectra of millions of stars with unprecedented accuracy. Gaia is located 930,000 miles from Earth.
It's expected that the data yielded can assist in understanding the formation and evolution of our galaxy. Now, a new 3D map of Gaia's observations has been produced by British astronomers. Dr. Floor van Leeuwenhoek at Cambridge University, who headed the project, said: "Gaia is measuring the distances of hundreds of millions of objects that are many thousands of light years away, at an accuracy equivalent to measuring the thickness of hair at a distance of more than 2,000 kilometres" He added that it allows us to "analyse our stellar neighbourhood and tackle crucial questions about the origin and future of our galaxy." Gaia was meant to be operational until 2022.
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