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Stellar HostProfile

GJ 27.1

Unclassified star • 23.61 pc

Records

5

literature rows

Planets

1

system count

References

6

distinct source labels

TIC: TIC 80417903HIP: HIP 3143

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

3687 K

3542 to 3945.5

4 values • 4 distinct

Mass

0.52 Msun

0.46 to 0.53

3 values • 3 distinct

Radius

0.52 Rsun

0.52 to 0.54

2 values • 2 distinct

Luminosity

-1.35 log(Lsun)

-1.59 to -1.30

3 values • 3 distinct

Distance

23.61 pc

single adopted value

5 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.52 R☉ • circles scaled linearly by radius

Sun

1.0 R☉ baseline

GJ 27.1

0.52 R☉

System Layout

Known planets

1 planets linked to this host

GJ 27.1 b

Radial Velocity

◌

Discovery

2014

Period

15.82 days

Radius

—

Mass

13 M⊕

Eq. Temp

—

GJ 27.1 and Its Planet

GJ 27.1 is a star 77 light-years from Earth. Its spectral type is M0.5 V, and its reported mass estimate is 0.516 solar masses and its reported radius estimate is 0.519 solar radii, both smaller than the Sun's. Its reported temperature is 3690 K, cooler than the Sun's.

One planet is known to orbit this star. GJ 27.1 b was discovered in 2014 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion; repeated wobbles reveal the planet and its orbital period. The planet has a minimum mass of 13 Earth masses, larger than Earth's, and an orbital period of 15.8 days. That minimum mass is a lower bound on the planet's true mass.

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

Temperaturedisputed

4 values • 4 distinct

Massdisputed

3 values • 3 distinct

Radiusdisputed

2 values • 2 distinct

Luminositydisputed

3 values • 3 distinct

Surface Gravitystable

1 values • 1 distinct

Spectral Typedisputed

3 values • 3 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
37060.460.54—-1.30M423.61Turnbull 2015TICv8
—————M0.523.61Hawley et al. 1996TICv8
35420.53——-1.59M0.5 V23.61Tuomi et al. 2014TICv8
3945.5—————23.61Gaia DR2TICv8
36870.520.52—-1.35—23.61TICv8TICv8