Discovery | |
---|---|
Discovery date | 2018 |
Transit [1] [2] | |
Orbital characteristics | |
0.05053 | |
2.72 d | |
Star | WASP-189 (HD 133112) |
Physical characteristics | |
1.600+0.017 −0.016 RJ | |
Mass | 1.99 MJ |
Albedo | <0.48 [3] |
Temperature | 3470 K |
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. [1] [2] [4] It was first discovered in 2018, and was observed in 2020 by CHEOPS.
WASP-189 b was first discovered in 2018. [5] 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 3,200 °C (5,790 °F; 3,470 K). Based on a passage in front of its host star ( transit) the radius is 1.6 times the radius of Jupiter. [1] [2] [4] Its atmosphere contains titanium oxide, and also contains metals such as chromium, magnesium, vanadium and manganese. [6]
Discovery | |
---|---|
Discovery date | 2018 |
Transit [1] [2] | |
Orbital characteristics | |
0.05053 | |
2.72 d | |
Star | WASP-189 (HD 133112) |
Physical characteristics | |
1.600+0.017 −0.016 RJ | |
Mass | 1.99 MJ |
Albedo | <0.48 [3] |
Temperature | 3470 K |
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. [1] [2] [4] It was first discovered in 2018, and was observed in 2020 by CHEOPS.
WASP-189 b was first discovered in 2018. [5] 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 3,200 °C (5,790 °F; 3,470 K). Based on a passage in front of its host star ( transit) the radius is 1.6 times the radius of Jupiter. [1] [2] [4] Its atmosphere contains titanium oxide, and also contains metals such as chromium, magnesium, vanadium and manganese. [6]