Tradotto dall'IA (Opus 5.5) dalla scheda inglese. Numeri, nomi e fonti sono invariati.

Stella con 3 pianeti noti

HD 181433

HD 181433, una stella K3 IV, ha 3 pianeti confermati.

Misurato

Informazioni 87.7 anni luce. Per attraversarlo:

Voyager 1 alla velocità con cui si è allontanata nell'anno fino al 2026-10-25 (JPL Horizons). In auto: senza sosta, senza mai fare rifornimento.

Primo pianeta scoperto nel 2008 con la velocità radiale (NASA Exoplanet Archive).

HD 181433 c — about 2,200 times Earth's mass; its year lasts about 3 Earth years; about −120 °C, below freezing; found in 2008 by radial velocity.
HD 181433 d — 13 times Earth's width (estimated from its mass, not measured), a giant, Jupiter-sized or more; its year lasts about 19 Earth years; about −190 °C, below freezing; found in 2008 by radial velocity.
HD 181433 b — about 1,700 times Earth's mass; its year lasts 9 days; about 460 °C, hotter than boiling water; found in 2008 by radial velocity.

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.

Tradotto dall'IA (Opus 5.5) dalla scheda inglese. Numeri, nomi e fonti sono invariati.

Stella con 3 pianeti noti

HD 181433, una stella K3 IV, ha 3 pianeti confermati.

Informazioni 87.7 anni luce. Per attraversarlo:

Voyager 1 alla velocità con cui si è allontanata nell'anno fino al 2026-10-25 (JPL Horizons). In auto: senza sosta, senza mai fare rifornimento.

Primo pianeta scoperto nel 2008 con la velocità radiale (NASA Exoplanet Archive).

HD 181433 c — about 2,200 times Earth's mass; its year lasts about 3 Earth years; about −120 °C, below freezing; found in 2008 by radial velocity.
HD 181433 d — 13 times Earth's width (estimated from its mass, not measured), a giant, Jupiter-sized or more; its year lasts about 19 Earth years; about −190 °C, below freezing; found in 2008 by radial velocity.
HD 181433 b — about 1,700 times Earth's mass; its year lasts 9 days; about 460 °C, hotter than boiling water; found in 2008 by radial velocity.

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.