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

Stella con 4 pianeti noti

Barnard's star

Apri in Ouranos

La stella di Barnard, una stella M3.5-4 V, ha 4 pianeti confermati.

Misurato

Distanza: circa 6 anni luce
Tipo spettrale della stella: M3.5-4 V
Pianeti confermati: 4

Distanza dal Sole

Informazioni 6 anni luce. Per attraversarlo:

Luce6 anni
Velocità della Voyager 1107,000 anni
In movimento a 100 km/h64.8 milioni 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 2024 con la velocità radiale (NASA Exoplanet Archive).

I suoi pianeti

Barnard c — 0.7 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 4 days; about 130 °C, hotter than boiling water; found in 2025 by radial velocity.
Barnard b — 0.7 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 3 days; about 170 °C, hotter than boiling water; found in 2024 by radial velocity.
Barnard e — 0.6 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 7 days; about 67 °C, between freezing and boiling; found in 2025 by radial velocity.
Barnard d — 0.7 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 2 days; about 210 °C, hotter than boiling water; found in 2025 by radial velocity.

The NASA Exoplanet Archive's page

Da dove proviene

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.

Ogni catalogo utilizzato da Ouranos è citato nella pagina dei crediti.

I suoi pianeti

Barnard c — 0.7 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 4 days; about 130 °C, hotter than boiling water; found in 2025 by radial velocity.

Barnard b — 0.7 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 3 days; about 170 °C, hotter than boiling water; found in 2024 by radial velocity.

Barnard e — 0.6 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 7 days; about 67 °C, between freezing and boiling; found in 2025 by radial velocity.

Barnard d — 0.7 times Earth's width (estimated from its mass, not measured), smaller than the Earth; its year lasts 2 days; about 210 °C, hotter than boiling water; found in 2025 by radial velocity.

Da dove proviene

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.