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51 Pegasi b, officially named Dimidium (/ dɪˈmɪdiəm /), is an extrasolar planet approximately 50 light-years (15 parsecs) away in the constellation of Pegasus. It was the first exoplanet to be discovered orbiting a ma...
Oct 24, 2024 · 51 Pegasi b is a gas giant exoplanet that orbits a G-type star. Its mass is 0.46 Jupiters, it takes 4.2 days to complete one orbit of its star, and is 0.0527 AU from its star. Its discovery was announce...
51 Pegasi b, the first extrasolar planet confirmed to orbit a sunlike star. It was the first planet found through the wobble it induced in its parent star, and its discovery led to that of thousands more extrasolar pl...
This list shows all planetary and stellar components in the system. It gives a quick overview of the hierarchical architecture. 1. 51 Peg, stellar object 1.1. 51 Peg b, planet, semi-major axis: 0.0520AU
飞马座51b（英文名：51 Pegasi b），又称Dimidium（拉丁语意为“一半”），是首颗被证实的环绕类太阳恒星飞马座51运行的系外行星，距地球约50.9光年。该行星质量约为木星的一半，体积为木星两倍，轨道周期仅4.2天，表面温度约1000°C，与母恒星距离比水星与太阳更近，处于潮汐锁定状态，属“热木星 ...
NASA Exoplanet Archive is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program.
Oct 15, 2021 · 该艺术家的视图显示了炽热的木星系外行星51 Pegasi b，有时也称为Bellerophon，它绕着飞马座北部星座飞离地球约50光年。这是1995年发现的第一颗围绕正常恒星的系外行星。二十年后，这个天体还是第一个在可见光中通过光谱直接探测到的系外行星。 天文学家使用HARPS行星搜索机首次对从系外行星反射 ...
