News tagged with velocity

Precision measurements of exoplanet velocities

The search for exoplanets via the radial velocity technique has been underway for nearly thirty years, measuring the wobbles in a star's motion caused by the presence of orbiting bodies. The method has been very successful ...

dateSep 28, 2016 in Astronomy
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The Dynamic Duo: RAVE complements Gaia

The new data release of the Radial Velocity Experiment (RAVE) is the fifth spectroscopic release of a survey of stars in the southern celestial hemisphere. It contains radial velocities for 520 781 spectra of 457 588 unique ...

dateSep 19, 2016 in Astronomy
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What exactly does 'instantaneous' mean?

How short is an "instant"? Is it a second? A tenth of a second? A microsecond? You might think all of these qualify. What about 100 years? That certainly doesn't seem like an instant, and to a human being, it isn't, since ...

dateSep 15, 2016 in Other
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