2024年10月24日 · WASP-69 b is a gas giant exoplanet that orbits a K-type star. Its mass is 0.29 Jupiters, it takes 3.9 days to complete one orbit of its star, and is 0.04525 AU from its star.

WASP-69, also named Wouri, is a K-type main-sequence star 164 light-years (50 parsecs) away from Earth. [6] Its surface temperature is 4782 ± 15 K. WASP-69 is slightly enriched in heavy elements compared to the Sun, with a metallicity Fe/H index of 0.10 ± 0.01, [4] and is much younger than the Sun at 2 billion years.

2024年12月10日 · On Earth, the Sun's stellar wind interacts with our planet's magnetic field which can create beautiful auroras like the Northern Lights. On WASP-69 b, the stellar wind coming from its host star actually shapes the gas escaping from the planet's outer atmosphere.

2024年1月9日 · Located 160 light-years away from Earth, WASP-69b is so close to its sun that one year on this alien world lasts only 3.9 Earth days. Their proximity subjects the planet to extreme radiation from its host star, causing the gas giant’s atmosphere to burn off.

2025年1月14日 · High-resolution transmission spectroscopy of the warm gas-giant WASP-69b has revealed the presence of H2O, CO, CH4, NH3, and C2H2 in its atmosphere. This study investigates the impact of vertical diffusion and photochemistry on its atmospheric composition, with a focus on the detected species plus HCN and CO2, to constrain the atmospheric C/O ...

2024年5月8日 · Located 163 light-years from Earth, a Jupiter-sized exoplanet named WASP-69b offers astrophysicists a window into the dynamic processes that shape planets across the galaxy.

2024年1月9日 · Astrophysicists have found that a large exoplanet known as WASP-69b is being trailed by a tail of gas seven times as long as the planet itself. The comet-like tail is the result of the planet’s gas atmosphere being burned off as it passes precariously close to the hot star it orbits and stretched by stellar winds.

2024年1月9日 · A number of planetary outflows have been observed as excess H/He absorption during/after transit. Such an outflow has been observed for WASP-69b by multiple groups that disagree on the geometry and velocity structure of the outflow. Here, we report the detection of this planet's outflow using Keck/NIRSPEC for the first time.

2023年12月4日 · A number of planetary outflows have been observed as excess H/He absorption during/after transit. Such an outflow has been observed for WASP-69b by multiple groups that disagree on the geometry and velocity structure of the outflow. Here, we report the detection of this planet's outflow using Keck/NIRSPEC for the first time.

2024年1月17日 · 太陽系外一顆類似彗星的行星，其巨大的「彗尾」其實是正在流失的大氣層，這引起了天文學家的興趣，名為WASP-69b的系外行星距離地球160光年，是一顆炎熱、蓬鬆的氣態巨行星，以3.9個地球日的速度圍繞其母恆星公轉。