Gliese 667 B

Star

Gliese 667 B - the second star of the GJ 667 triple, a K5V orange dwarf that orbits close to its companion A. Together A and B are the bright pair that the planet-hosting red dwarf C circles from far away.

Open in 3D viewSee Gliese 667 B in the live, interactive 3D map

Key facts

Mass

1.37 × 10³⁰ kg

0.69 M☉

Radius

486,990 km

70% of the Sun's radius

Surface temperature

4,160 K (3887 °C)

Luminosity

1.91 × 10²⁵ W

Spectral type

K5V (orange dwarf)

Science

Physical

Mass: 1.37 × 10³⁰ kg · 0.69 M☉
Radius: 486,990 km · 70% of the Sun's radius
Density: 2,837 kg/m³ · 2.8× water
Spectral type: K5V (orange dwarf)

Composition

By mass: An orange dwarf about 69% of the Sun's mass, orbiting close to its companion A.

Temperature

Surface: 4,160 K (3887 °C)

Radiation & temperature

Luminosity: 1.91 × 10²⁵ W · 0.05 L☉
Surface temperature: 4,160 K (3887 °C)
Peak wavelength: 697 nm · red light

Discovery & history

Name: The secondary (B) of the GJ 667 triple star system.

The secondary of the bright GJ 667 AB pair in Scorpius.

Images

Where to find it — in Scorpius, the Scorpion (IAU constellation chart). To the eye it is a single point of light; no telescope has imaged its surface. — IAU / Sky & Telescope, R. Sinnott & R. Fienberg (CC BY 3.0) · Wikimedia Commons

Images from open archives · credit shown per image