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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4颗已知行星的恒星

K2-32

在 Ouranos 中打开

K2-32 是一颗 G9 V 型恒星,拥有 4 颗已确认的行星。

实测

距离
约514光年
恒星光谱型
G9 V
已确认的行星
4

与太阳的距离

简介 514光年. 穿越它需要:

  • 光514年
  • 旅行者1号的速度9.14百万年
  • 以100 km/h的速度行驶5.55亿年

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

  • 2016年通过凌星法发现首颗行星(NASA系外行星档案库)。

它的行星

  • K2-32 e — 1.2 times Earth's width, about Earth-sized — probably rocky; its year lasts 4 days; about 790 °C, hotter than boiling water; found in 2019 by transit.
  • K2-32 c — 3.1 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 21 days; about 360 °C, hotter than boiling water; found in 2016 by transit.
  • K2-32 d — 3.5 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 32 days; about 280 °C, hotter than boiling water; found in 2016 by transit.
  • K2-32 b — 5.3 times Earth's width, Neptune-sized; its year lasts 9 days; about 560 °C, hotter than boiling water; found in 2016 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.

Ouranos所使用的每个星表均在致谢页中注明。