
LTT 9779 - Wikipedia
LTT 9779 (or Uúba) is a G-type main-sequence star located 264 light-years (81 parsecs) away from the Solar System in the constellation of Sculptor. The star is about 95% the radius and …
LTT 9779 - 维基百科,自由的百科全书
ltt 9779是位於玉夫座的一顆g型主序星,距離太陽系 264光年(81秒差距)遠。 這顆恆星的半徑約為太陽半徑的95%,質量與 太陽 大致相同,但比太陽年輕17億歲,因此光度較低(大約是 …
LTT 9779 b - Wikipedia
LTT 9779 b, officially named Cuancoá, is a Neptune-sized planet orbiting the sunlike star LTT 9779, or Uúba. As of 2023, it has the highest-known albedo of any planet. [1]
2000°C 的“雪球”:“超热海王星” LTT 9779 b 大气被发现水蒸气痕 …
2025年3月10日 · LTT 9779 b 距离其恒星非常近,仅需不到一个地球日就能完成一次公转。 这种近距离导致其白天的温度高达 2000℃以上,因此被称为“超热海王星”。 这颗行星具有极高的反 …
UCLA Researchers Use JWST to Forecast Partially Cloudy Skies on …
A team led by graduate student Louis-Philippe Coulombe used the James Webb Space Telescope to explore the exotic atmosphere of LTT 9779 b, a rare “ultra-hot Neptune.” Orbiting …
A 2,000°C Inferno That Still Shimmers: An Ultra-Hot ... - SciTechDaily
2025年2月27日 · LTT 9779 b, an ultra-hot Neptune, is defying expectations. With temperatures soaring to nearly 2,000°C and a tidally locked orbit, one side faces eternal fire while the other …
LTT 9779 | NASA Exoplanet Archive
Characterising a World Within the Hot Neptune Desert: Transit Observations of LTT 9779 b with HST WFC3 Edwards et al. 2023 | Reference Overview ExoClock Project.
The extremely high albedo of LTT 9779 b revealed by CHEOPS
2023年7月10日 · LTT 9779 b is the first detected ultrahot Neptune (Jenkins et al. 2020). With a 0.79 day orbital period and a size of 4.72 R ⊕, it was the first planet to populate the so-called …
Muted Features in the JWST NIRISS Transmission Spectrum of Hot …
2024年2月8日 · Here, we present transmission observations of LTT 9779 b, the only known hot Neptune to have retained a significant H/He-dominated atmosphere, taken with JWST …
LTT 9779 - 维基百科,自由的百科全书 - zh.wikipedia.org
2024年8月10日 · ltt 9779是位于玉夫座的一颗g型主序星,距离太阳系 264光年(81秒差距)远。 这颗恒星的半径约为太阳半径的95%,质量与 太阳 大致相同,但比太阳年轻17亿岁,因此光 …