HD 33142, una stella K0 III, ha 3 pianeti confermati.
Misurato
Distanza
circa 396 anni luce
Tipo spettrale della stella
K0 III
Pianeti confermati
3
Distanza dal Sole
Informazioni 396 anni luce. Per attraversarlo:
Luce396 anni
Velocità della Voyager 17.03 milioni di anni
In movimento a 100 km/h4.27 miliardi di anni
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.
Come è stato scoperto
Primo pianeta scoperto nel 2011 con la velocità radiale (NASA Exoplanet Archive).
I suoi pianeti
HD 33142 b — 14 times Earth's width (estimated from its mass, not measured), a giant, Jupiter-sized or more; its year lasts 330 days; about 210 °C, hotter than boiling water; found in 2011 by radial velocity.
HD 33142 c — 14 times Earth's width (estimated from its mass, not measured), a giant, Jupiter-sized or more; its year lasts about 2 Earth years; about 81 °C, between freezing and boiling; found in 2016 by radial velocity.
HD 33142 d — 9.3 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 90 days; about 460 °C, hotter than boiling water; found in 2022 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.