Back to Stellar Hosts
Stellar HostProfile

HD 22781

K0 • 32.60 pc

Records

4

literature rows

Planets

1

system count

References

5

distinct source labels

HD: HD 22781HIP: HIP 17187TIC: TIC 101166776

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

5069 K

5027 to 5091

3 values • 3 distinct

Mass

0.80 Msun

0.75 to 0.85

2 values • 2 distinct

Radius

0.75 Rsun

0.74 to 0.75

2 values • 2 distinct

Age

4.80 Gyr

single adopted value

1 values • 1 distinct

Luminosity

-0.48 log(Lsun)

-0.48 to -0.47

2 values • 2 distinct

Distance

32.60 pc

single adopted value

4 values • 1 distinct

Spectral Type

K0

Multiple classifications reported

K0 (1), K1 (1)

Planets

1

Stable across source rows

1

System Layout

Known planets

1 planets linked to this host

HD 22781 b

Radial Velocity

Discovery

2011

Period

528.1 days

Radius

Mass

4338.2 M⊕

Eq. Temp

Provenance

Underlying measurements and references

Evidence Summary

Rows

4

Stellar refs

4

System refs

1

Distancestable

4 values • 1 distinct

Parallaxstable

4 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 Typedisputed

2 values • 2 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
50690.850.75-0.4732.60TICv8TICv8
50910.74-0.4832.60Gaia DR2TICv8
50270.754.80K132.60Díaz et al. 2012TICv8
K032.60Cannon & Pickering 1918TICv8