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Stellar HostProfile

LSPM J2116+0234

M3.0 V • 17.63 pc

Records

3

literature rows

Planets

1

system count

References

4

distinct source labels

TIC: TIC 387518186

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: Lalitha et al. 2019 • System source: TICv8

Temperature

3475 K

3440 to 3673.6

3 values • 3 distinct

Mass

0.43 Msun

0.43 to 0.43

2 values • 2 distinct

Radius

0.43 Rsun

0.43 to 0.43

2 values • 2 distinct

Age

2 Gyr

single adopted value

1 values • 1 distinct

Luminosity

-1.70 log(Lsun)

-1.70 to -1.63

2 values • 2 distinct

Distance

17.63 pc

single adopted value

3 values • 1 distinct

Spectral Type

M3.0 V

Consistent across records

M3.0 V (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.43 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

LSPM J2116+0234

0.43 R☉

System Layout

Known planets

1 planets linked to this host

LSPM J2116+0234 b

Radial Velocity

◌

Discovery

2019

Period

14.44 days

Radius

—

Mass

13.30 M⊕

Eq. Temp

—

LSPM J2116+0234: A Nearby Red Dwarf and Its Planet

LSPM J2116+0234 is an M3.0 V star, a small, cool red dwarf, located 57.5 light-years away. It hosts one planet, LSPM J2116+0234 b, discovered in 2019 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 star's reported mass estimate is 0.43 solar masses, smaller than the Sun's, and its reported radius estimate is 0.431 solar radii, also smaller than the Sun's. Its temperature is 3480 K, cooler than the Sun's, and its age is 2 billion years.

LSPM J2116+0234 b has a minimum mass of 13.3 Earth masses, a lower bound on its true mass that differs from an ordinary mass estimate. Its minimum mass is larger than Earth's, and its orbital period is 14.4 days.

Provenance

Underlying measurements and references

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Evidence Summary

Rows

3

Stellar refs

3

System refs

1

Distancestable

3 values • 1 distinct

Parallaxstable

3 values • 1 distinct

Temperaturedisputed

3 values • 3 distinct

Massdisputed

2 values • 2 distinct

Radiusdisputed

2 values • 2 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

2 values • 2 distinct

Metallicitystable

1 values • 1 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
3673.6—————17.63Gaia DR2TICv8
34400.430.43—-1.63—17.63TICv8TICv8
34750.430.432-1.70M3.0 V17.63Lalitha et al. 2019TICv8