News tagged with radial velocities

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The origin and maintenance of a retrograde exoplanet

Astronomers have used the Subaru Telescope to show that the HAT-P-7 planetary system, which is about 1040 light years from Earth in the constellation Cygnus, includes at least two giant planets and one companion star (Figure ...

dateJan 25, 2013 in Astronomy
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The 3D fireworks of a star

In 1901 the star GK Persei gave off a powerful explosion that has not stopped growing and astonishing ever since. Now a team of Spanish and Estonian astronomers has reconstructed the journey of the emitted gas in 3D which, ...

dateJan 24, 2013 in Astronomy
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Mission: To discover exoplanets

This small satellite of primarily Swiss design was chosen above twenty-five other projects. Named CHEOPS for "CHaracterizing ExOPlanet Satellite," the selection of this device was just announced by the European Space Agency ...

dateOct 25, 2012 in Astronomy
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