WASP-189 b explained

WASP-189 b
Discovered:2018
Semimajor:0.05053
Period:2.72 d
Star:WASP-189 (HD 133112)
Mass:1.99
Albedo:<0.48

WASP-189 b (also known as HD 133112 b) is an extrasolar planet that has an orbital period around its host star, WASP-189 (HD 133112), of less than three earth days, and is about 322 light-years away in the Libra constellation. It was first discovered in 2018, and was observed in 2020 by CHEOPS.

Discovery and observations

WASP-189 b was first discovered in 2018.[1] In 2020, astronomers used CHEOPS to observe it. Based on a passage behind its host star (occultation) the planet's brightness could be measured and the temperature was estimated to be 3200C. Based on a passage in front of its host star (transit) the radius is 1.6 times the radius of Jupiter.[2] [3] [4] Its atmosphere contains titanium oxide, and also contains metals such as chromium, magnesium, vanadium and manganese.[5]

See also

External links

Notes and References

  1. 1809.04897. Anderson. D. R.. Temple. L. Y.. Nielsen. L. D.. Burdanov. A.. Hellier. C.. Bouchy. F.. Brown. D. J. A.. Collier Cameron. A.. Gillon. M.. Jehin. E.. Maxted. P. F. L.. Pepe. F.. Pollacco. D.. Pozuelos. F. J.. Queloz. D.. Ségransan. D.. Smalley. B.. Triaud. A. H. M. J.. Turner. O. D.. Udry. S.. West. R. G.. WASP-189b: An ultra-hot Jupiter transiting the bright a star HR 5599 in a polar orbit. 2018. astro-ph.EP.
  2. News: University of Bern . University of Bern . First study with CHEOPS data describes one of the most extreme planets in the universe . 28 September 2020 . . 28 September 2020 .
  3. Web site: First results from Cheops: ESA's exoplanet observer reveals extreme alien world . esa.int . Esa . 28 September 2020.
  4. Lendl, M. . et al.. The hot dayside and asymmetric transit of WASP-189 b seen by CHEOPS? . 17 September 2020 . . 643. A94. 10.1051/0004-6361/202038677 . 2009.13403. 2020A&A...643A..94L. 28 September 2020 . free .
  5. 2111.12732. Prinoth. B.. Hoeijmakers. H. J.. Kitzmann. D.. Sandvik. E.. Seidel. J. V.. Lendl. M.. Borsato. N. W.. Thorsbro. B.. Anderson. D. R.. Barrado. D.. Kravchenko. K.. Allart. R.. Bourrier. V.. Cegla. H. M.. Ehrenreich. D.. Fisher. C.. Lovis. C.. Guzmán-Mesa. A.. Grimm. S.. Hooton. M.. Morris. B. M.. Oreshenko. M.. Pino. L.. Heng. K.. Titanium oxide and chemical inhomogeneity in the atmosphere of the exoplanet WASP-189 B. Nature Astronomy. 2022. 6. 4. 449–457. 10.1038/s41550-021-01581-z. 2022NatAs...6..449P. 244708931.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "WASP-189 b".

Except where otherwise indicated, Everything.Explained.Today is © Copyright 2009-2024, A B Cryer, All Rights Reserved. Cookie policy.