由 AI(Opus 5.5)根据英文卡片翻译。数字、名称和来源均未改动。
有已知行星的恒星
K2-151
K2-151是一颗M1.5 V型恒星,有一颗已确认的行星。
实测
- 距离
- 约227光年
- 恒星光谱型
- M1.5 V
- 已确认的行星
- 1
与太阳的距离
简介 227光年. 穿越它需要:
- 光227年
- 旅行者1号的速度4.03百万年
- 以100 km/h的速度行驶2.45亿年
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
- 2018年通过凌星法发现首颗行星(NASA系外行星档案库)。
它的行星
- K2-151 b — 1.5 times Earth's width, about Earth-sized — probably rocky; its year lasts 4 days; about 290 °C, hotter than boiling water; found in 2018 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.