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Stellar HostProfile

Barnard's star

M3.5-4 V • 1.83 pc

Records

7

literature rows

Planets

4

system count

References

8

distinct source labels

HIP: HIP 87937TIC: TIC 325554331

Approximate color

from effective temperature

Canonical Summary

Adopted host values from all rows

Numeric fields use the median of non-null measurements. Disagreement stays visible through ranges, counts, and provenance.

Temperature

3259 K

3195 to 3271

3 values • 3 distinct

Mass

0.16 Msun

0.16 to 0.24

3 values • 3 distinct

Radius

0.19 Rsun

0.18 to 0.19

3 values • 3 distinct

Luminosity

-2.43 log(Lsun)

-2.45 to -2.42

2 values • 2 distinct

Distance

1.83 pc

single adopted value

7 values • 1 distinct

Spectral Type

M3.5-4 V

Multiple classifications reported

M3.5-4 V (1), M3.5V (1), M4 (1)

Planets

4

Stable across source rows

4

System Layout

Known planets

4 planets linked to this host

Barnard b

Radial Velocity

Discovery

2024

Period

3.15 days

Radius

Mass

0.30 M⊕

Eq. Temp

438 K

Barnard c

Radial Velocity

Discovery

2025

Period

4.12 days

Radius

Mass

0.34 M⊕

Eq. Temp

400 K

Barnard d

Radial Velocity

Discovery

2025

Period

2.34 days

Radius

Mass

0.26 M⊕

Eq. Temp

483 K

Barnard e

Radial Velocity

Discovery

2025

Period

6.74 days

Radius

Mass

0.19 M⊕

Eq. Temp

340 K

Provenance

Underlying measurements and references

Evidence Summary

Rows

7

Stellar refs

7

System refs

1

Distancestable

7 values • 1 distinct

Parallaxstable

7 values • 1 distinct

Temperaturedisputed

3 values • 3 distinct

Massdisputed

3 values • 3 distinct

Radiusdisputed

3 values • 3 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

2 values • 2 distinct

Metallicitystable

1 values • 1 distinct

Spectral Typedisputed

3 values • 3 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
M41.83Hawley et al. 1996TICv8
1.83Nidever et al. 2002TICv8
32710.240.19M3.5V1.83Turnbull 2015TICv8
1.83Wright et al. 2004TICv8
1.83Duncan et al. 1991TICv8
32590.160.19-2.421.83TICv8TICv8
31950.160.18-2.45M3.5-4 V1.83Gonzalez Hernandez et al. 2024TICv8