HD 80653 RV time series
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Ultra-short period (USP) planets are a class of exoplanets with periods shorter than one day. The origin of this sub-population of planets is st ill unclear, with different...
超短周期（Ultra-short period, USP）行星是一类轨道周期短于一日的系外行星。该行星子群体的起源目前仍不明确，存在多种不同的……
