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

Stella con 3 pianeti noti

HD 176986

HD 176986, una stella K2.5 V, ha 3 pianeti confermati.

Misurato

Informazioni 90.6 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 2017 con la velocità radiale (NASA Exoplanet Archive).

HD 176986 d — 2.5 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 61 days; about 90 °C, between freezing and boiling; found in 2026 by radial velocity.
HD 176986 b — about 1,500 times Earth's mass; its year lasts 6 days; about 490 °C, hotter than boiling water; found in 2017 by radial velocity.
HD 176986 c — about 2,100 times Earth's mass; its year lasts 17 days; about 290 °C, hotter than boiling water; found in 2017 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 176986, una stella K2.5 V, ha 3 pianeti confermati.

Informazioni 90.6 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 2017 con la velocità radiale (NASA Exoplanet Archive).

HD 176986 d — 2.5 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 61 days; about 90 °C, between freezing and boiling; found in 2026 by radial velocity.
HD 176986 b — about 1,500 times Earth's mass; its year lasts 6 days; about 490 °C, hotter than boiling water; found in 2017 by radial velocity.
HD 176986 c — about 2,100 times Earth's mass; its year lasts 17 days; about 290 °C, hotter than boiling water; found in 2017 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.