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Stella con 6 pianeti noti

HD 34445

Apri in Ouranos

HD 34445, una stella G0 V, ha 6 pianeti confermati.

Misurato

Distanza: circa 150 anni luce
Tipo spettrale della stella: G0 V
Pianeti confermati: 6

Distanza dal Sole

Informazioni 150 anni luce. Per attraversarlo:

Luce150 anni
Velocità della Voyager 12.67 milioni di anni
In movimento a 100 km/h1.62 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.

Dati

HD 34445 f e HD 34445 b hanno una temperatura di equilibrio compresa tra −50 e +50 °C.

Come è stato scoperto

Primo pianeta scoperto nel 2009 con la velocità radiale (NASA Exoplanet Archive).

I suoi pianeti

HD 34445 d — 6.1 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 120 days; about 200 °C, hotter than boiling water; found in 2017 by radial velocity.
HD 34445 c — 8.4 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 210 days; about 120 °C, hotter than boiling water; found in 2017 by radial velocity.
HD 34445 g — 14 times Earth's width (estimated from its mass, not measured), a giant, Jupiter-sized or more; its year lasts about 16 Earth years; about −140 °C, below freezing; found in 2017 by radial velocity.
HD 34445 e — 4.3 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 49 days; about 370 °C, hotter than boiling water; found in 2017 by radial velocity.
HD 34445 f — 6.9 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 680 days; about −7 °C, below freezing; found in 2017 by radial velocity.
HD 34445 b — 14 times Earth's width (estimated from its mass, not measured), a giant, Jupiter-sized or more; its year lasts about 3 Earth years; about −42 °C, below freezing; found in 2009 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

HD 34445 d — 6.1 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 120 days; about 200 °C, hotter than boiling water; found in 2017 by radial velocity.

HD 34445 c — 8.4 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 210 days; about 120 °C, hotter than boiling water; found in 2017 by radial velocity.

HD 34445 g — 14 times Earth's width (estimated from its mass, not measured), a giant, Jupiter-sized or more; its year lasts about 16 Earth years; about −140 °C, below freezing; found in 2017 by radial velocity.

HD 34445 e — 4.3 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 49 days; about 370 °C, hotter than boiling water; found in 2017 by radial velocity.

HD 34445 f — 6.9 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 680 days; about −7 °C, below freezing; found in 2017 by radial velocity.

HD 34445 b — 14 times Earth's width (estimated from its mass, not measured), a giant, Jupiter-sized or more; its year lasts about 3 Earth years; about −42 °C, below freezing; found in 2009 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.