News tagged with radial velocities

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A close call of 0.8 light years

A group of astronomers from the US, Europe, Chile and South Africa have determined that 70,000 years ago a recently discovered dim star is likely to have passed through the solar system's distant cloud of comets, the Oort ...

dateFeb 17, 2015 in Astronomy
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250 years of planetary detection in 60 seconds

Early astronomers realized some of the "stars" in the sky were planets in our Solar System, and really, only then did we realize Earth is a planet too. Now, we're finding planets around other stars, and thanks to the Kepler ...

dateFeb 12, 2015 in Astronomy
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New technique measures mass of exoplanets

To date, scientists have confirmed the existence of more than 900 exoplanets circulating outside our solar system. To determine if any of these far-off worlds are habitable requires knowing an exoplanet's mass—which can ...

dateDec 19, 2013 in Astronomy
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Lightest exoplanet imaged so far?

( —A team of astronomers using ESO's Very Large Telescope has imaged a faint object moving near a bright star. With an estimated mass of four to five times that of Jupiter, it would be the least massive planet ...

dateJun 03, 2013 in Astronomy
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