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With the exoplanet sample known in 2009, a group of astronomers estimated that "(1) around 35% of the published eccentric one-planet solutions are statistically indistinguishable from planetary systems in 2:1 orbital resonance, (2) another 40% cannot be statistically distinguished from a circular orbital solution" and "(3) planets with masses ...
An artist's rendition of Kepler-62f, a potentially habitable exoplanet discovered using data transmitted by the Kepler space telescope. The list of exoplanets detected by the Kepler space telescope contains bodies with a wide variety of properties, with significant ranges in orbital distances, masses, radii, composition, habitability, and host star type.
The NStED collects and serves public data to support the search for and characterization of extra-solar planets (exoplanets) and their host stars. The data include published light curves, images, spectra and parameters, and time-series data from surveys that aim to discover transiting exoplanets.
Orbital elements are the parameters required to uniquely identify a specific orbit. In celestial mechanics these elements are considered in two-body systems using a Kepler orbit . There are many different ways to mathematically describe the same orbit, but certain schemes, each consisting of a set of six parameters, are commonly used in ...
Motion interpolation of seven images of the HR 8799 system taken from the W. M. Keck Observatory over seven years, featuring four exoplanets. This is a list of extrasolar planets that have been directly observed, sorted by observed separations. This method works best for young planets that emit infrared light and are far from the glare of the star.
In astrodynamics, the orbital eccentricity of an astronomical object is a dimensionless parameter that determines the amount by which its orbit around another body deviates from a perfect circle. A value of 0 is a circular orbit , values between 0 and 1 form an elliptic orbit , 1 is a parabolic escape orbit (or capture orbit), and greater than ...
Interactive Visualizers for Planet Parameters: These interactive tables display data for confirmed planets, Kepler Objects of Interest (KOIs), Threshold-Crossing Events (TCEs) and target stellar data that users can filter, sort and download or export to other Exoplanet Archive services, such as light curve visualization for the Kepler stars.
An exoplanet that orbits two stars. PH1b, Kepler-16b: Circumtriple planet: An exoplanet that orbits three stars. Gliese 900 b: Double planet: Also known as a binary planet. Two planetary-mass objects orbiting each other. OGLE-2017-BLG-0380Lb [2] Eccentric Jupiter: A gas giant that orbits its star in an eccentric orbit. HD 80606 b, HD 20782 b ...