List of directly imaged exoplanets

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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. Currently, this list includes both directly imaged planets and imaged planetary-mass companions (objects that orbit a star but formed through a binary-star-formation process, not a planet-formation process). This list does not include free-floating planetary-mass objects in star-forming regions or young associations, which are also referred to as rogue planets.

The least massive planet is Fomalhaut b, which has a mass of 2 MJ or less. The coldest and oldest is 59 Virginis b with a mean temperature of 240 °C and age of 100–500 million years.[1] This list includes the four members of the multi-planet system that orbit HR 8799.

Yellow rows denote the members of the multi-planet system

Planet Mass (MJ) Radius (RJ) Period (yr) Observed separation (AU) Eccentricity Distance to Earth (ly) Year of discovery Imaging technique
Beta Pictoris b 7.0 1.6 20 9 <0.1 63 2008 RSDI
51 Eridani b 2.0 1.0  ? 13  ? 96 2014 ADI, TLOCI
HR 8799 e 7.0 1.3 49 14.5 0.14 128 2010 ADI, LOCI
HR 8799 d 7.0 1.3 100 24.5 0.09 128 2008 ADI, LOCI
HR 8799 c 7.0 1.3 189 37.4 0.24 128 2008 ADI, LOCI
HR 8799 b 5.0 1.2 474 69.2 0.17 128 2008 ADI, LOCI
ROXs 42Bb 9.0  ?  ? 157  ? 440 2013 Direct imaging
2M1207b 4.2 1.5 1620 40.6 0.37 170 2004 Direct imaging
1RXS 1609 b 8–14 1.7 6518 331.1 0.08 470 2008 Direct imaging
2M J044144 5–10 15 456 2010 Direct imaging
Fomalhaut b < 2.0 872–2000 116.0 25 2008/2012 RSDI
LkCa 15 b 6.2 1.8 42315 23.5 0.32 477 2011 NRM interferometry
WD 0806-661 B 7–13  ?  ? 2500  ? 62 2011 Direct imaging
Ross 458(AB) c 8.5 1.8 33081 1167.7 0.17 38[2] 2011 Direct Imaging
HD 95086 b 5.0  ?  ? 56  ? 295 2013 ADI, LOCI
GJ 504 b 4+4.5
−1		  ?  ? 43.5  ? 57.27 2013 ADI, LOCI
FW Tauri b 10±4  ?  ? 330  ?  ? 2013 Direct imaging
HD 106906 b 11±2  ?  ? 650  ? 300 2013 ADI
GU Piscium b 11±2 163000 2000 155 2014 Direct imaging
VHS 1256 b 11.2 3900 102 40 2015 Direct imaging

References

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External links

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  1. ↑ Direct Imaging of a Cold Jovian Exoplanet in Orbit around the Sun-like Star GJ 504
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