Back to Stellar Hosts
Stellar HostProfile

81 Cet

G5 III • 101.3 pc

Records

8

literature rows

Planets

1

system count

References

9

distinct source labels

HD: HD 16400HIP: HIP 12247TIC: TIC 35725282

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

4829.8 K

4734 to 4845

5 values • 5 distinct

Mass

1.67 Msun

1.23 to 2.40

4 values • 4 distinct

Radius

11.25 Rsun

11 to 11.43

4 values • 4 distinct

Luminosity

1.78 log(Lsun)

1.76 to 1.81

3 values • 3 distinct

Distance

101.3 pc

single adopted value

8 values • 1 distinct

Spectral Type

G5 III

Multiple classifications reported

G5 III (2), K0 (1), K0 III (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 11.25 R☉ • circles scaled linearly by radius

Sun

1.0 R☉ baseline

81 Cet

11.25 R☉

System Layout

Known planets

1 planets linked to this host

81 Cet b

Radial Velocity

Discovery

2008

Period

952.7 days

Radius

Mass

1684.4 M⊕

Eq. Temp

Provenance

Underlying measurements and references

Evidence Summary

Rows

8

Stellar refs

8

System refs

1

Distancestable

8 values • 1 distinct

Parallaxstable

8 values • 1 distinct

Temperaturedisputed

5 values • 5 distinct

Massdisputed

4 values • 4 distinct

Radiusdisputed

4 values • 4 distinct

Luminositydisputed

3 values • 3 distinct

Surface Gravitydisputed

3 values • 3 distinct

Metallicitydisputed

4 values • 4 distinct

Spectral Typedisputed

4 values • 3 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
47341.2311.211.76G5 III101.3Teng et al. 2023TICv8
4829.811.431.81101.3Gaia DR2TICv8
K0101.3Cannon & Pickering 1918TICv8
4844.311.29101.3TICv8TICv8
1.60101.3Kunitomo et al. 2011TICv8
K0 III101.3Michigan Catalog, Vol. 5TICv8
47852.40111.78G5 III101.3Sato et al. 2008TICv8
48451.74101.3Mortier et al. 2013TICv8