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

Stella con 4 pianeti noti

GJ 3293

Apri in Ouranos

GJ 3293, una stella M2.5, ha 4 pianeti confermati.

Misurato

Distanza: circa 65.9 anni luce
Tipo spettrale della stella: M2.5
Pianeti confermati: 4

Distanza dal Sole

Informazioni 65.9 anni luce. Per attraversarlo:

Luce65.9 anni
Velocità della Voyager 11.17 milioni di anni
In movimento a 100 km/h711 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.

Dati

GJ 3293 b e GJ 3293 d hanno una temperatura di equilibrio compresa tra −50 e +50 °C.

Come è stato scoperto

Primo pianeta scoperto nel 2015 con la velocità radiale (NASA Exoplanet Archive).

I suoi pianeti

GJ 3293 b — 5.2 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 31 days; about 8 °C, between freezing and boiling; found in 2015 by radial velocity.
GJ 3293 d — 2.7 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 48 days; about −32 °C, below freezing; found in 2017 by radial velocity.
GJ 3293 c — 4.9 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 120 days; about −96 °C, below freezing; found in 2015 by radial velocity.
GJ 3293 e — 1.6 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 13 days; about 98 °C, between freezing and boiling; found in 2017 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

GJ 3293 b — 5.2 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 31 days; about 8 °C, between freezing and boiling; found in 2015 by radial velocity.

GJ 3293 d — 2.7 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 48 days; about −32 °C, below freezing; found in 2017 by radial velocity.

GJ 3293 c — 4.9 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 120 days; about −96 °C, below freezing; found in 2015 by radial velocity.

GJ 3293 e — 1.6 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 13 days; about 98 °C, between freezing and boiling; found in 2017 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.