Gliese 581 d: Difference between revisions
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== Discovery == | == Discovery == | ||
The planet was discovered by the team of [[ | The planet was discovered by the team of [[Stéphane Udry]] of the Geneva Observatory in [[Switzerland]] using the [[HARPS]] instrument on the [[European Southern Observatory]] 3.6 meter telescope in [[La Silla]], [[Chile]]. Udry's team employed the [[radial velocity]] technique, in which the size and mass of a planet are determined based on the small perturbations it induces in its parent star’s orbit via gravity. | ||
The team is "confident" that the planet exists but recognizes that "unlikely" events could mimic its existence. They believe the issue will be settled by upcoming studies. | |||
== References == | == References == | ||
Revision as of 01:03, 29 April 2007
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Gliese 581 d is an extrasolar planet orbiting the red dwarf star Gliese 581. Due to its mass it can be categorized as a Super-Earth.
Discovery
The planet was discovered by the team of Stéphane Udry of the Geneva Observatory in Switzerland using the HARPS instrument on the European Southern Observatory 3.6 meter telescope in La Silla, Chile. Udry's team employed the radial velocity technique, in which the size and mass of a planet are determined based on the small perturbations it induces in its parent star’s orbit via gravity.
The team is "confident" that the planet exists but recognizes that "unlikely" events could mimic its existence. They believe the issue will be settled by upcoming studies.
References
External links
See also
es:Gliese 581 d fr:Gliese 581 d nl:Gliese 581 d fi:Gliese 581 d sv:Gliese 581 d