Astronomy:OGLE2-TR-L9b
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 Artist impression of OGLE2-TR-L9b and its star | |
| Discovery | |
|---|---|
| Discovered by | Meta de Hoon Remco van der Burg Francis Vuijsje |
| Discovery date | December 2, 2008 |
| Transit | |
| Orbital characteristics | |
| 0.031 ± 0.001[1] | |
| Orbital period | 2.48553417 ± 0.00000064 d 59.6528 h[2] |
| Inclination | 82.19°±0.21°[2] |
| Star | OGLE2-TR-L9 |
| Physical characteristics | |
| Mean radius | 1.958+0.174 −0.111[1] |♃|J}}}}}} |
| Mass | 4.5 ± 1.5 |♃|J}}}}}}[3][1] |
| Mean density | 1.25±0.43 g/cm3[2] |
| Physics | 2,034±22 K[2] |
OGLE2-TR-L9b is an extrasolar planet discovered by three undergraduate students from Leiden University, Netherlands.
The planet is about 4.5 times as massive as Jupiter and is the first discovered planet orbiting a fast-rotating hot star.[3]
Initially discovered while testing a method for investigating light fluctuations in the OGLE database, the planet's existence was later confirmed by follow-up observations from the ESO's Very Large Telescope in Chile.[3]
See also
References
- ↑ 1.0 1.1 1.2 Johns, Daniel; Marti, Connor; Huff, Madison; McCann, Jacob; Wittenmyer, Robert A.; Horner, Jonathan; Wright, Duncan J. (2018-11-01). "Revised Exoplanet Radii and Habitability Using Gaia Data Release 2". The Astrophysical Journal Supplement Series 239 (1): 14. doi:10.3847/1538-4365/aae5fb. ISSN 0067-0049. Bibcode: 2018ApJS..239...14J.
- ↑ 2.0 2.1 2.2 2.3 Southworth; John (October 2012). "Homogeneous studies of transiting extrasolar planets - V. New results for 38 planets". Monthly Notices of the Royal Astronomical Society 426 (2,21): 1291–1323. doi:10.1111/j.1365-2966.2012.21756.x. Bibcode: 2012MNRAS.426.1291S. https://academic.oup.com/mnras/article/426/2/1291/974362.
- ↑ 3.0 3.1 3.2 Snellen; Koppenhoefer, J.; Van Der Burg, R. F. J.; Dreizler, S.; Greiner, J.; De Hoon, M. D. J.; Husser, T. O.; Krühler, T. et al. (2009). "OGLE2-TR-L9b: an exoplanet transiting a rapidly rotating F3 star". Astronomy and Astrophysics 497 (2): 545–550. doi:10.1051/0004-6361/200810917. Bibcode: 2009A&A...497..545S. http://goedoc.uni-goettingen.de/goescholar/bitstream/handle/1/9693/aa10917-08.pdf?sequence=2.
External links
- "OGLE2-TR-L9". Exoplanets. http://media4.obspm.fr/exoplanets/base/etoile.php?nom=OGLE2-TR-L9.
- Students Discover Unique Planet
- "Students find planet outside our solar system". NBC News. 2008-12-04. https://www.nbcnews.com/id/wbna28058012.
Coordinates: 
11h 07m 55s, −61° 08′ 46″
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