List of directly imaged 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. 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 | ||
| CVSO 30 c | 27000 | 660 | 1200 | 2016 | Direct imaging | |||
| HD 131399 Ab | 4±1 | ? | 550 | 82 | 0.35 | 320[3] | 2016 | ADI |
References
- ↑ Direct Imaging of a Cold Jovian Exoplanet in Orbit around the Sun-like Star GJ 504
- ↑ "Ross 458(AB) c". The Extrasolar Planet Encyclopaedia. Exoplanet.eu. Retrieved 2012-10-24.
- ↑ "Direct imaging discovery of a Jovian exoplanet within a triple-star system". Science magazine. AAAS. Retrieved 2016-07-08.
External links
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Wikimedia Commons has media related to Direct images of exoplanets. |
- "Candidates detected by imaging". The Extrasolar Planets Encyclopaedia. Retrieved 2011-03-02.
- "Exoplanets Data Explorer". Retrieved 2011-03-02.
- https://www.eso.org/public/images/potw1624a/ - Retrieved 2016-06-16