The NASA Exoplanet Archive is an online astronomical

exoplanet An exoplanet or extrasolar planet is a planet outside the Solar System. The first confirmed detection of an exoplanet was in 1992 around a pulsar, and the first detection around a main-sequence star was in 1995. A different planet, first det ...

catalog and data service that collects and serves public data that support the search for and characterization of extra-solar planets (exoplanets) and their host stars. It is part of the

Infrared Processing and Analysis Center The Infrared Processing and Analysis Center (IPAC) provides science operations, data management, data archives and community support for astronomy and planetary science missions. IPAC has a historical emphasis on infrared-submillimeter astronomy a ...

and is on the campus of the California Institute of Technology (Caltech) in

Pasadena, CA Pasadena ( ) is a city in Los Angeles County, California, United States, northeast of downtown Los Angeles. It is the most populous city and the primary cultural center of the San Gabriel Valley. Old Pasadena is the city's original commercial ...

. The archive is funded by

NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States ...

and was launched in early December 2011 by the

NASA Exoplanet Science Institute The NASA Exoplanet Science Institute (NExScI) is part of the Infrared Processing and Analysis Center (IPAC) and is on the campus of the California Institute of Technology (Caltech) in Pasadena, CA. NExScI was formerly known as the Michelson Sci ...

as part of NASA's Exoplanet Exploration Program. In June 2019, the archive's collection of confirmed exoplanets surpassed 4,000. (Compare: ) The archive's data include published light curves, images, spectra and parameters, and time-series data from surveys that aim to discover transiting exoplanets. The archive also develops Web-based tools and services to work with the data, particularly the display and analysis of transit data sets from the

Kepler mission The Kepler space telescope is a defunct space telescope launched by NASA in 2009 to discover Earth-sized planets orbiting other stars. Named after astronomer Johannes Kepler, the spacecraft was launched into an Earth-trailing heliocentric orb ...

and COnvection ROtation and planetary Transits (CoRoT) mission, for which the Exoplanet Archive is the U.S. data portal. Other astronomical surveys and telescopes that have contributed data sets to the archive include

SuperWASP WASP or Wide Angle Search for Planets is an international consortium of several academic organisations performing an ultra-wide angle search for exoplanets using transit photometry. The array of robotic telescopes aims to survey the entire sky ...

HATNet Project The Hungarian Automated Telescope Network (HATNet) project is a network of six small fully automated "HAT" telescopes. The scientific goal of the project is to detect and characterize extrasolar planets using the transit method. This network is us ...

, XO,

Trans-Atlantic Exoplanet Survey The Trans-Atlantic Exoplanet Survey, or ''TrES'', used three 4-inch (10 cm) telescopes located at Lowell Observatory, Palomar Observatory, and Teide Observatory to locate exoplanets. It was made using the network of small, relatively inexpens ...

and

KELT KELT may refer to: *A Salmonid that has spawned at least once and did not die afterwards *An alternative spelling of Celt * KELT (FM), call letters of an FM radio station located in Encinal, Texas * KELT, the former call letters of an FM radio stat ...

. According to third-party

web analytics Web analytics is the measurement, data collection, collection, analysis, and reporting of web Data (computing), data to understand and optimize web usage. Web analytics is not just a process for measuring web traffic but can be used as a tool for ...

provider SimilarWeb, the company's website has over 130,000 visits per month, as of January 2015.

Exoplanet Data Content

The Exoplanet Archive contains objects discovered through all

methods Method (, methodos, from μετά/meta "in pursuit or quest of" + ὁδός/hodos "a method, system; a way or manner" of doing, saying, etc.), literally means a pursuit of knowledge, investigation, mode of prosecuting such inquiry, or system. In re ...

(

radial velocity The radial velocity or line-of-sight velocity of a target with respect to an observer is the rate of change of the vector displacement between the two points. It is formulated as the vector projection of the target-observer relative velocity ...

, transits,

microlensing Gravitational microlensing is an astronomical phenomenon caused by the gravitational lens effect. It can be used to detect objects that range from the mass of a planet to the mass of a star, regardless of the light they emit. Typically, astronome ...

imaging Imaging is the representation or reproduction of an object's form; especially a visual representation (i.e., the formation of an image). Imaging technology is the application of materials and methods to create, preserve, or duplicate images. ...

astrometry Astrometry is a branch of astronomy that involves precise measurements of the positions and movements of stars and other Astronomical object, celestial bodies. It provides the kinematics and physical origin of the Solar System and this galaxy, th ...

, eclipse timing variations, and transit timing variations/TTV) that have publicly available planetary parameters, with a mass (or minimum mass) equal to or less than 30 Jupiter masses.

Exoplanet Archive Tools and Services

In addition to providing access to large public data sets, the Exoplanet Archive has developed several tools to work with exoplanet and stellar host data. *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. * Kepler Light Curve Viewer: Interactive display of user-selected quarters for a single Kepler target. Any column from the light curve file can be plotted with or without normalization and sent to the periodogram or phase tool. * Periodogram Service: This tool calculates the periodogram of time series data from the archive or a file uploaded by the user. The service supports three algorithms: Lomb-Scargle periodogram, Box-fitting Least Squares (BLS) and Plavchan. Phased light curves for the most significant periods are also available. * Transit and Ephemeris Calculations: This service returns an ephemeris of the times of transit of the exoplanet across its host star. Optionally, for a given longitude and latitude or observatory, the service tabulates times of transit at that location and can calculate the time for secondary transits or other phase points in the orbit. * Application Program Interface (API): This service allows a user access to the contents of the exoplanet and host star table and the Kepler candidate table via a URL or command-line-based query. * Pre-generated Plots: Ready-made plots that provide the community with fast access to presentation material that describe the current state of the exoplanets field in terms of their number and our understanding of their orbital and physical characteristics. * EXOFAST Transit and Radial Velocity Fitting Tool: An important fitting tool for astronomers who want to use transit light curves or radial velocity data and various inputs to create models of planet systems. This web service is based on the original code by Jason Eastman."EXOFAST: A Fast Exoplanetary Fitting Suite in IDL," Publications of the Astronomical Society of Pacific, Eastman, Gaudi & Agol 2013
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Transit Survey Data in the Exoplanet Archive

The Exoplanet Archive serves photometric time-series data from surveys that aim to discover transiting exoplanets, such as the Kepler Mission and CoRoT. The database provides access to over 22 million light curves from space and ground-based exoplanet transit survey programs, including: *

Kepler Johannes Kepler (27 December 1571 – 15 November 1630) was a German astronomer, mathematician, astrologer, natural philosopher and writer on music. He is a key figure in the 17th-century Scientific Revolution, best known for his laws of p ...

and K2 Public Survey Data * CoRoT Exoplanet Survey data * CoRoT Asteroseismology data *

HATNet The Hungarian Automated Telescope Network (HATNet) project is a network of six small fully automated "HAT" telescopes. The scientific goal of the project is to detect and characterize extrasolar planets using the transit method. This network is us ...

Survey data * XO Survey data *

TrES Tres may refer to: * Tres (instrument), a Cuban musical instrument * Tres, Trentino, municipality in Italy * ''Tres'' (2014 film), a Filipino anthology drama film based on short stories * "Tres" (song) by Juanes *"Tres", a song by Líbido from thei ...

Survey data *

light curves *

UKIRT The United Kingdom Infra-Red Telescope (UKIRT) is a 3.8 metre (150 inch) infrared reflecting telescope, the second largest dedicated infrared (1 to 30 micrometres) telescope in the world. It is located on Mauna Kea, Hawai'i as part of Mauna ...

Microlensing Survey data The Exoplanet Archive offers search and filtering capabilities for exoplanet stellar and planetary properties, Kepler planetary candidates, and time series data sets. All data in the Exoplanet Archive are vetted by a team of astronomers and the original literature references are available. The Exoplanet Archive supports interactive visualization of images, spectra, and time series data and maintains its own stellar cross-identification to minimize ambiguity in multiple star components.

References

External links

NASA Exoplanet Archive - Home

NASA Exoplanet Archive - Confirmed Planets Interactive Table

The NASA Exoplanet Archive: Data and Tools for Exoplanet Research
- Publications of the Astronomical Society of the Pacific
NASA Exoplanet Science Institute

Planet Hunters

Infrared Processing and Analysis Center

NASA Exoplanet Exploration Program

Exoplanet Community Follow-up Observing Program (ExoFOP)

California Institute of Technology
{{exoplanets Astronomical databases Astronomy websites Exoplanet catalogues Stellar astronomy Computational astronomy Databases in the United States NASA

Exoplanet Data Content

Exoplanet Archive Tools and Services

Transit Survey Data in the Exoplanet Archive

See also

References

External links