There is special interest in planets that orbit in a star's habitable zone (or sometimes called "goldilocks zone"), where it is possible for liquid water, a prerequisite for life as we know it, to exist on the surface. The discovery of exoplanets has intensified interest in the search for extraterrestrial life. The nearest exoplanets are located 4.2 light-years (1.3 parsecs) from Earth and orbit Proxima Centauri, the closest star to the Sun. However, there is evidence that extragalactic planets, exoplanets farther away in galaxies beyond the local Milky Way galaxy, may exist. Some exoplanets are so far away from the star that it is difficult to tell whether they are gravitationally bound to it.Īlmost all of the planets detected so far are within the Milky Way. Known orbital times for exoplanets vary from a few hours (for those closest to their star) to thousands of years. However, according to some definitions of a planet (based on the nuclear fusion of deuterium ), it is too massive to be a planet and might be a brown dwarf instead.
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The most massive planet listed on the NASA Exoplanet Archive is HR 2562 b, about 30 times the mass of Jupiter. The least massive planet known is Draugr (also known as PSR B1257+12 A or PSR B1257+12 b), which is about twice the mass of the Moon. Assuming there are 200 billion stars in the Milky Way, it can be hypothesized that there are 11 billion potentially habitable Earth-sized planets in the Milky Way, rising to 40 billion if planets orbiting the numerous red dwarfs are included. About 1 in 5 Sun-like stars have an " Earth-sized" planet in the habitable zone. In several cases, multiple planets have been observed around a star. Transit photometry and Doppler spectroscopy have found the most, but these methods suffer from a clear observational bias favoring the detection of planets near the star thus, 85% of the exoplanets detected are inside the tidal locking zone. There are many methods of detecting exoplanets. As of 1 July 2022, there are 5,108 confirmed exoplanets in 3,779 planetary systems, with 826 systems having more than one planet. A different planet, initially detected in 1988, was confirmed in 2003. The first confirmation of detection occurred in 1992. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such.
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The Registrar of Record identified in this output may have an RDDS service that can be queried for additional information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.Four exoplanets orbiting counterclockwise with their host star ( HR 8799).Īn exoplanet or extrasolar planet is a planet outside the Solar System. By submitting this query, you agree to abide by this policy. Public Interest Registry reserves the right to modify these terms at any time. You agree that you will use this data only for lawful purposes and that, under no circumstances will you use this data to (a) allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass unsolicited, commercial advertising or solicitations to entities other than the data recipient's own existing customers or (b) enable high volume, automated, electronic processes that send queries or data to the systems of Registry Operator, a Registrar, or Donuts except as reasonably necessary to register domain names or modify existing registrations. This service is intended only for query-based access. The data in this record is provided by Public Interest Registry for informational purposes only, and Public Interest Registry does not guarantee its accuracy.
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Terms of Use: Access to Public Interest Registry WHOIS information is provided to assist persons in determining the contents of a domain name registration record in the Public Interest Registry registry database. URL of the ICANN Whois Inaccuracy Complaint Form: įor more information on Whois status codes, please visit Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name. Tech State/Province: REDACTED FOR PRIVACY Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.Īdmin State/Province: REDACTED FOR PRIVACYĪdmin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name. Registrant Phone Ext: REDACTED FOR PRIVACY Registrant Postal Code: REDACTED FOR PRIVACY Registrant Organization: Domains By Proxy, LLC Registry Registrant ID: REDACTED FOR PRIVACY Registrar Abuse Contact Email: Abuse Contact Phone: +1.4806242505
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