Stellar HostProfile

Kepler-221

Unclassified star • 385.2 pc

Records

literature rows

Planets

system count

References

distinct source labels

TIC: TIC 272601375

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

5280 K

5044 to 5324

32 values • 9 distinct

Mass

0.72 Msun

0.72 to 0.91

26 values • 6 distinct

Radius

0.75 Rsun

0.72 to 0.86

34 values • 11 distinct

Age

8.70 Gyr

1.78 to 8.70

6 values • 3 distinct

Luminosity

-0.41 log(Lsun)

-0.41 to -0.40

2 values • 2 distinct

Distance

385.2 pc

single adopted value

38 values • 1 distinct

Planets

Stable across source rows

System Layout

Known planets

4 planets linked to this host

Kepler-221 d

Transit

◌

Discovery

2014

Period

10.04 days

Radius

—

Mass

3.61 M⊕

Eq. Temp

—

Kepler-221 e

Transit

◌

Discovery

2014

Period

18.37 days

Radius

3.58 R⊕

Mass

—

Eq. Temp

582 K

Kepler-221 b

Transit

◌

Discovery

2014

Period

—

Radius

1.59 R⊕

Mass

—

Eq. Temp

—

Kepler-221 c

Transit

◌

Discovery

2014

Period

5.69 days

Radius

2.96 R⊕

Mass

—

Eq. Temp

—

Provenance

Underlying measurements and references

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

38 values • 1 distinct

Parallaxstable

38 values • 1 distinct

Temperaturedisputed

32 values • 9 distinct

Massdisputed

26 values • 6 distinct

Radiusdisputed

34 values • 11 distinct

Agedisputed

6 values • 3 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

29 values • 7 distinct

Metallicitydisputed

20 values • 6 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
5280	0.72	0.75	—	—	—	385.2	Q1-Q17 DR24 KOI Table	TICv8
5244	0.83	0.81	—	—	—	385.2	Q1-Q17 DR25 KOI Table	TICv8
—	—	—	—	—	—	385.2	Q1-Q17 DR25 Supplemental KOI Table	TICv8
5324	0.82	0.81	8.70	—	—	385.2	Q1-Q8 KOI Table	TICv8
5123	—	0.72	—	—	—	385.2	Q1-Q6 KOI Table	TICv8
5324	0.82	0.81	8.70	—	—	385.2	Q1-Q8 KOI Table	TICv8
5280	0.72	0.75	—	—	—	385.2	Q1-Q12 KOI Table	TICv8
5260	0.85	0.77	1.78	—	—	385.2	Fulton & Petigura 2018	TICv8
5260	—	0.77	—	—	—	385.2	Berger et al. 2018	TICv8
5280	0.72	0.75	—	—	—	385.2	Q1-Q16 KOI Table	TICv8
5044	—	0.82	—	-0.41	—	385.2	Gaia DR2	TICv8
5296	0.87	0.82	4.57	—	—	385.2	Morton et al. 2016	TICv8
5324	0.82	0.81	8.70	—	—	385.2	Q1-Q8 KOI Table	TICv8
5123	—	0.72	—	—	—	385.2	Q1-Q6 KOI Table	TICv8
5280	0.72	0.75	—	—	—	385.2	Q1-Q12 KOI Table	TICv8
5280	0.72	0.75	—	—	—	385.2	Q1-Q17 DR24 KOI Table	TICv8
—	—	—	—	—	—	385.2	Q1-Q17 DR25 Supplemental KOI Table	TICv8
5123	0.72	0.72	—	—	—	385.2	Batalha et al. 2013	TICv8
5280	0.72	0.75	—	—	—	385.2	Q1-Q17 DR24 KOI Table	TICv8
5244	0.83	0.81	—	—	—	385.2	Q1-Q17 DR25 KOI Table	TICv8
5123	—	0.86	—	—	—	385.2	Latham et al. 2005	TICv8
5123	—	0.72	—	—	—	385.2	Q1-Q6 KOI Table	TICv8
5284.8	0.91	0.75	—	-0.40	—	385.2	TICv8	TICv8
—	0.85	0.78	—	—	—	385.2	Ofir et al. 2025	TICv8
5243	—	0.82	—	—	—	385.2	Rowe et al. 2014	TICv8
5280	0.72	0.75	—	—	—	385.2	Q1-Q16 KOI Table	TICv8
5280	0.72	0.75	—	—	—	385.2	Q1-Q16 KOI Table	TICv8
5280	0.72	0.75	—	—	—	385.2	Q1-Q12 KOI Table	TICv8
5324	0.82	0.81	8.70	—	—	385.2	Q1-Q8 KOI Table	TICv8
5123	—	0.72	—	—	—	385.2	Q1-Q6 KOI Table	TICv8
5280	0.72	0.75	—	—	—	385.2	Q1-Q16 KOI Table	TICv8
5280	0.72	0.75	—	—	—	385.2	Q1-Q17 DR24 KOI Table	TICv8
—	—	—	—	—	—	385.2	Q1-Q17 DR25 Supplemental KOI Table	TICv8
—	0.72	0.75	—	—	—	385.2	Hadden et al. 2014	TICv8
5244	0.83	0.81	—	—	—	385.2	Q1-Q17 DR25 KOI Table	TICv8
5244	0.83	0.81	—	—	—	385.2	Q1-Q17 DR25 KOI Table	TICv8
—	—	—	—	—	—	385.2	Q1-Q17 DR25 Supplemental KOI Table	TICv8
5280	0.72	0.75	—	—	—	385.2	Q1-Q12 KOI Table	TICv8