Related Research Articles
An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917, but was not recognized as such. The first confirmation of the detection occurred in 1992. A different planet, initially detected in 1988, was confirmed in 2003. As of 1 October 2023, there are 5,506 confirmed exoplanets in 4,065 planetary systems, with 878 systems having more than one planet. The James Webb Space Telescope (JWST) is expected to discover more exoplanets, and also much more about exoplanets, including composition, environmental conditions and potential for life.
A rogue planet is an interstellar object of planetary mass which is not gravitationally bound to any star or brown dwarf. Rogue planets may originate from planetary systems in which they are formed and later ejected, or they can also form on their own, outside a planetary system. The Milky Way alone may have billions to trillions of rogue planets, a range the upcoming Nancy Grace Roman Space Telescope will likely be able to narrow down.
A circumbinary planet is a planet that orbits two stars instead of one. The two stars orbit each other in a binary system, while the planet typically orbits farther from the center of the system than either of the two stars. In contrast, circumstellar planets in a binary system have stable orbits around one of the two stars, closer in than the orbital distance of the other star. Studies in 2013 showed that there is a strong hint that a circumbinary planet and its stars originate from a single disk.
OGLE-2007-BLG-349(AB)b is a circumbinary extrasolar planet about 8,000 light-years away in the constellation of Sagittarius. It is the first circumbinary exoplanet to be discovered using the microlensing method of detecting exoplanets.
OGLE-2016-BLG-1190Lb is an extremely massive exoplanet, with a mass about 13.4 times that of Jupiter (MJ), or is, possibly, a low mass brown dwarf, orbiting the G-dwarf star OGLE-2016-BLG-1190L, located about 22,000 light years from Earth, in the constellation of Sagittarius, in the galactic bulge of the Milky Way.
Planet-hosting stars are stars which host planets, therefore forming planetary systems.
References
- 1 2 Jung, Y. K; Udalski, A; Gould, A; Ryu, Y.-H; Yee, J. C; Han, C; Albrow, M. D; Lee, C.-U; Kim, S.-L; Hwang, K.-H; Chung, S.-J; Shin, I.-G; Zhu, W; Cha, S.-M; Kim, D.-J; Lee, Y; Park, B.-G; Lee, D.-J; Kim, H.-W; Pogge, R. W; Szymański, M. K; Mróz, P; Poleski, R; Skowron, J; Pietrukowicz, P; Soszyński, I; Kozłowski, S; Ulaczyk, K; Pawlak, M; Rybicki, K (2018). "OGLE-2017-BLG-1522: A Giant Planet around a Brown Dwarf Located in the Galactic Bulge". The Astronomical Journal. 155 (5): 219. arXiv: 1803.05095 . Bibcode:2018AJ....155..219J. doi: 10.3847/1538-3881/aabb51 . S2CID 56100528.
- ↑ Nowakowski, Tomasz (26 March 2018). "Astronomers discover a giant planet orbiting a brown dwarf". Phys.org. Retrieved 5 April 2018.
 | This extrasolar-planet-related article is a stub. You can help Wikipedia by expanding it. |