由 AI(Opus 5.5)根据英文卡片翻译。数字、名称和来源均未改动。
有2颗已知行星的恒星
K2-413
K2-413 拥有 2 颗已确认的行星。
实测
- 距离
- 约930光年
- 已确认的行星
- 2
与太阳的距离
简介 930光年. 穿越它需要:
- 光930年
- 旅行者1号的速度16.5百万年
- 以100 km/h的速度行驶10亿年
旅行者1号以截至2026-10-25的一年中向外运动的速度(JPL Horizons)。驾车:不停歇,永不加油。
发现方式
- 2022年通过凌星法发现首颗行星(NASA系外行星档案库)。
它的行星
- K2-413 b — 0.8 times Earth's width, smaller than the Earth; its year lasts 19 hours; about 1,300 °C, hot enough to melt rock; found in 2022 by transit.
- K2-413 c — 1.2 times Earth's width, about Earth-sized — probably rocky; its year lasts 5 days; about 530 °C, hotter than boiling water; found in 2022 by transit.
The NASA Exoplanet Archive's page
资料来源
- NASA Exoplanet Archive, Planetary Systems Composite Parameters (fetched 2026-11-02). Composite values: where a planet's size or mass was not measured, the archive estimates it from the other.
- This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with NASA under the Exoplanet Exploration Program.