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Stellar HostProfile

GJ 680

Unclassified star • 9.67 pc

Records

5

literature rows

Planets

1

system count

References

6

distinct source labels

TIC: TIC 325624908HIP: HIP 86057

Approximate color

from effective temperature

Canonical Summary

Adopted host values from one source row

Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.

Stellar source: TICv8 • System source: TICv8

Temperature

3563 K

single adopted value

2 values • 1 distinct

Mass

0.46 Msun

0.42 to 0.46

3 values • 3 distinct

Radius

0.46 Rsun

0.46 to 0.47

2 values • 2 distinct

Luminosity

-1.51 log(Lsun)

-1.52 to -1.51

2 values • 2 distinct

Distance

9.67 pc

single adopted value

5 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.46 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

GJ 680

0.46 R☉

System Layout

Known planets

1 planets linked to this host

GJ 680 b

Radial Velocity

◌

Discovery

2022

Period

1.73e4 days

Radius

—

Mass

7977.5 M⊕

Eq. Temp

—

GJ 680 b: A Massive Planet Orbiting a Nearby Red Dwarf

GJ 680 is an M1.5 V star located 31.5 light-years from Earth. As an M-type dwarf, it is a small, cool red dwarf. Its mass is 0.456 solar masses, its radius is 0.459 solar radii, and its surface temperature is 3560 K. Each of these measurements is smaller or cooler than the corresponding value for the Sun. The star hosts one known planet.

That planet, GJ 680 b, was discovered in 2022 using the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. GJ 680 b has a mass of 7980 Earth masses, roughly 25.1 times Jupiter's mass, making it substantially more massive than Earth. Its orbital period is 17300 days.

Provenance

Underlying measurements and references

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Evidence Summary

Rows

5

Stellar refs

5

System refs

1

Distancestable

5 values • 1 distinct

Parallaxstable

5 values • 1 distinct

Temperaturestable

2 values • 1 distinct

Massdisputed

3 values • 3 distinct

Radiusdisputed

2 values • 2 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitystable

1 values • 1 distinct

Spectral Typedisputed

3 values • 3 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
35630.420.47—-1.52K59.67Turnbull 2015TICv8
—0.46————9.67Feng et al. 2022TICv8
35630.460.46—-1.51—9.67TICv8TICv8
—————M1.5 V9.67Gray et al. 2006TICv8
—————M1.59.67Hawley et al. 1996TICv8