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2M1207b

2M1207b is a planetary-mass object orbiting the brown dwarf 2M1207, in the constellation Centaurus, approximately 170 light-years from Earth. It is one of the first candidate exoplanets to be directly observed (by infrared imaging). It was discovered in April 2004 by the Very Large Telescope (VLT) at the Paranal Observatory in Chile by a team from the…

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Argument of periastron
4–176
Composition by volume
hydrogen, water, carbon monoxide, helium
Detection method
Imaged
Discovered by
Chauvin et al.
Discovery date
April 2004
Discovery site
Paranal Observatory, Chile

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Overview

Discovery and identification

Properties

Status as an exoplanet

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2M1207b

Nodes67
Edges66
Triples59
Avg. degree1.97
Density0.029851
Components1

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2M1207b

Top relations

related to Status as an exoplanet · 18
2M1207b → Although, As, Cha, Extrasolar Planets, GQ Lupi, IAU, IAU's, IAU's Working Group, In, International Astronomical Union's, Jupiter, L4/L5, M/Mcentral, On, Solar System, Some, The, With
related to Properties · 14
2M1207b → Alternatively, Although, As, Because, CH4, CO, Estimates, JWST, JWST MIRI, Mamajek, Michael Meyer, MJ, NIRSpec, The
related to Discovery and identification · 9
2M1207b → After, American, An, Eric Mamajek, Hubble Space Telescope, In December, It, Trigonometric, VLT
Argument of periastron · 1
2M1207b → 4–176
Composition by volume · 1
2M1207b → hydrogen, water, carbon monoxide, helium
Detection method · 1
2M1207b → Imaged
Discovered by · 1
2M1207b → Chauvin et al.
Discovery date · 1
2M1207b → April 2004
Discovery site · 1
2M1207b → Paranal Observatory, Chile
Eccentricity · 1
2M1207b → 0.02–0.98

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Important terminology

mass object temperature 2m1207 planet brown distance jupiter disk dwarf exoplanet first infrared chauvin sun carbon monoxide 2004 methane discovery

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
2M1207bArgument of periastron4–1761.00infobox
2M1207bComposition by volumehydrogen, water, carbon monoxide, helium1.00infobox
2M1207bDetection methodImaged1.00infobox
2M1207bDiscovered byChauvin et al.1.00infobox
2M1207bDiscovery dateApril 20041.00infobox
2M1207bDiscovery siteParanal Observatory, Chile1.00infobox
2M1207bEccentricity0.02–0.981.00infobox
2M1207bInclination13–1501.00infobox
2M1207bLongitude of ascending node7–1741.00infobox
2M1207bMass5.5±0.5 MJ1.00infobox
2M1207bMean radius1.399 +0.008 −0.010 RJ1.00infobox
2M1207bOrbital period (sidereal)633–20046 y1.00infobox
2M1207bSemi-major axis24–231 AU (3.6×109–3.46×1010 km)1.00infobox
2M1207bSpectral typemid-to-late L1.00infobox
2M1207bStar2M12071.00infobox
2M1207bTemperature1200 K1.00infobox
2M1207bTime of periastron2107.69–12883.361.00infobox
2M1207bis aplanetary-mass object orbiting the brown dwarf 2M12070.90text

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