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Stellar HostProfile

HD 221420

G2 IV-V • 31.14 pc

Records

14

literature rows

Planets

1

system count

References

15

distinct source labels

TIC: TIC 277890728HIP: HIP 116250HD: HD 221420

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

5838.5 K

5773.5 to 5847.4

4 values • 4 distinct

Mass

1.34 Msun

1.06 to 1.67

7 values • 5 distinct

Radius

1.95 Rsun

1.93 to 2.00

3 values • 3 distinct

Age

3.70 Gyr

3.65 to 6.60

3 values • 3 distinct

Luminosity

0.60 log(Lsun)

0.59 to 0.60

4 values • 3 distinct

Distance

31.14 pc

single adopted value

14 values • 1 distinct

Spectral Type

G2 IV-V

Multiple classifications reported

G2 IV-V (2), G2 V (2), G1 V (1), K0 (1)

Planets

1

Stable across source rows

1

System Layout

Known planets

1 planets linked to this host

HD 221420 b

Radial Velocity

Discovery

2019

Period

22482 days

Radius

Mass

3083.0 M⊕

Eq. Temp

Provenance

Underlying measurements and references

Evidence Summary

Rows

14

Stellar refs

14

System refs

1

Distancestable

14 values • 1 distinct

Parallaxstable

14 values • 1 distinct

Temperaturedisputed

4 values • 4 distinct

Massdisputed

7 values • 5 distinct

Radiusdisputed

3 values • 3 distinct

Agedisputed

3 values • 3 distinct

Luminositydisputed

4 values • 3 distinct

Surface Gravitydisputed

3 values • 3 distinct

Metallicitydisputed

4 values • 4 distinct

Spectral Typedisputed

6 values • 4 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
5773.52.000.6031.14Gaia DR2TICv8
1.0631.14Feng et al. 2022TICv8
31.14Valenti & Fischer 2005TICv8
31.14Henry et al. 1996TICv8
G2 IV-V31.14Gray et al. 2006TICv8
58301.6731.14Kane et al. 2019TICv8
31.14Nordstrom et al. 2004TICv8
1.286.600.59G2 V31.14Li et al. 2021TICv8
K031.14Cannon & Pickering 1918TICv8
58471.351.953.650.60G2 IV-V31.14Venner et al. 2021TICv8
5847.41.061.930.5931.14TICv8TICv8
1.343.70G1 V31.14Philipot et al. 2023TICv8
G2 V31.14Michigan Catalog, Vol. 1TICv8
1.3431.14An et al. 2025TICv8