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Stellar HostProfile

HD 20781

G0 • 35.97 pc

Records

7

literature rows

Planets

5

system count

References

8

distinct source labels

HD: HD 20781TIC: TIC 144503312HIP: HIP 15526

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

5257.1 K

5256 to 5342

4 values • 3 distinct

Mass

0.76 Msun

0.70 to 0.90

3 values • 3 distinct

Radius

0.85 Rsun

0.83 to 0.86

2 values • 2 distinct

Luminosity

-0.30 log(Lsun)

-0.31 to -0.29

4 values • 4 distinct

Distance

35.97 pc

single adopted value

7 values • 1 distinct

Spectral Type

G0

Multiple classifications reported

G0 (1), G9.5 V (1), K0 V (1)

Planets

5

Stable across source rows

5

System Layout

Known planets

4 planets linked to this host

HD 20781 e

Radial Velocity

Discovery

2019

Period

85.51 days

Radius

Mass

14.03 M⊕

Eq. Temp

HD 20781 d

Radial Velocity

Discovery

2019

Period

29.16 days

Radius

Mass

10.61 M⊕

Eq. Temp

HD 20781 b

Radial Velocity

Discovery

2019

Period

5.31 days

Radius

Mass

1.93 M⊕

Eq. Temp

HD 20781 c

Radial Velocity

Discovery

2019

Period

13.89 days

Radius

Mass

5.33 M⊕

Eq. Temp

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

4 values • 3 distinct

Massdisputed

3 values • 3 distinct

Radiusdisputed

2 values • 2 distinct

Luminositydisputed

4 values • 4 distinct

Surface Gravitydisputed

3 values • 2 distinct

Metallicitydisputed

3 values • 2 distinct

Spectral Typedisputed

3 values • 3 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
53420.83-0.2935.97Gaia DR2TICv8
52560.70-0.31K0 V35.97Udry et al. 2019TICv8
35.97Nordstrom et al. 2004TICv8
52560.76-0.3135.97Sousa et al. 2008TICv8
G035.97Cannon & Pickering 1918TICv8
5258.10.900.86-0.2935.97TICv8TICv8
G9.5 V35.97Gray et al. 2006TICv8