TOI-421

G9 V형 별인 TOI-421에는 확인된 행성이 2개 있다.

측정값

정보 244광년. 가로지르는 데 걸리는 시간:

2026-10-25까지 1년 동안 바깥쪽으로 이동한 속도의 보이저 1호(JPL Horizons). 운전: 쉬지 않고, 연료 보급 없이.

TOI-421 b — 2.6 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 5 days; about 650 °C, hotter than boiling water; found in 2020 by transit.
TOI-421 c — 5.1 times Earth's width, Neptune-sized; its year lasts 16 days; about 360 °C, hotter than boiling water; found in 2020 by transit.

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.

영어 카드를 AI(Opus 5.5)가 번역했습니다. 숫자, 이름, 출처는 바뀌지 않았습니다.

알려진 행성이 2개인 별

G9 V형 별인 TOI-421에는 확인된 행성이 2개 있다.

정보 244광년. 가로지르는 데 걸리는 시간:

2026-10-25까지 1년 동안 바깥쪽으로 이동한 속도의 보이저 1호(JPL Horizons). 운전: 쉬지 않고, 연료 보급 없이.

TOI-421 b — 2.6 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 5 days; about 650 °C, hotter than boiling water; found in 2020 by transit.
TOI-421 c — 5.1 times Earth's width, Neptune-sized; its year lasts 16 days; about 360 °C, hotter than boiling water; found in 2020 by transit.

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.