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Stellar HostProfile

Kepler-18

Unclassified star • 433.0 pc

Records

34

literature rows

Planets

3

system count

References

21

distinct source labels

TIC: TIC 273690178

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

5356 K

5031.6 to 5487

27 values • 8 distinct

Mass

0.88 Msun

0.88 to 0.98

23 values • 8 distinct

Radius

1.05 Rsun

0.90 to 1.27

29 values • 11 distinct

Age

8.50 Gyr

2.04 to 10.72

6 values • 4 distinct

Luminosity

-0.17 log(Lsun)

-0.22 to -0.03

3 values • 3 distinct

Distance

433.0 pc

single adopted value

34 values • 1 distinct

Planets

3

Stable across source rows

3

System Layout

Known planets

3 planets linked to this host

Kepler-18 d

Transit

Discovery

2011

Period

14.86 days

Radius

6.63 R⊕

Mass

15.70 M⊕

Eq. Temp

Kepler-18 c

Transit

Discovery

2011

Period

7.64 days

Radius

Mass

6.30 M⊕

Eq. Temp

Kepler-18 b

Transit

Discovery

2011

Period

3.50 days

Radius

Mass

140.4 M⊕

Eq. Temp

Provenance

Underlying measurements and references

Evidence Summary

Rows

34

Stellar refs

20

System refs

1

Distancestable

34 values • 1 distinct

Parallaxstable

34 values • 1 distinct

Temperaturedisputed

27 values • 8 distinct

Massdisputed

23 values • 8 distinct

Radiusdisputed

29 values • 11 distinct

Agedisputed

6 values • 4 distinct

Luminositydisputed

3 values • 3 distinct

Surface Gravitydisputed

24 values • 6 distinct

Metallicitydisputed

17 values • 4 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
0.98433.0Weiss et al. 2024TICv8
54410.980.902.04433.0Fulton & Petigura 2018TICv8
53850.940.988.50433.0Q1-Q8 KOI TableTICv8
433.0Q1-Q17 DR25 Supplemental KOI TableTICv8
0.90433.0Hadden & Lithwick 2017TICv8
5031.61.02-0.22433.0Gaia DR2TICv8
53560.881.05433.0Q1-Q17 DR25 KOI TableTICv8
53850.98433.0Q1-Q6 KOI TableTICv8
53560.881.05433.0Q1-Q17 DR24 KOI TableTICv8
53560.881.05433.0Q1-Q16 KOI TableTICv8
53560.881.05433.0Q1-Q12 KOI TableTICv8
53560.881.05433.0Q1-Q17 DR25 KOI TableTICv8
0.980.90433.0Ofir et al. 2025TICv8
53560.881.05433.0Q1-Q16 KOI TableTICv8
53850.940.988.50433.0Q1-Q8 KOI TableTICv8
53560.881.05433.0Q1-Q12 KOI TableTICv8
53560.881.05433.0Q1-Q16 KOI TableTICv8
53560.881.05433.0Q1-Q12 KOI TableTICv8
54870.941.0610.72433.0Morton et al. 2016TICv8
53450.971.1110-0.03433.0Cochran et al. 2011TICv8
53590.95433.0ExoFOPTICv8
54410.92433.0Berger et al. 2018TICv8
53560.881.05433.0Q1-Q17 DR24 KOI TableTICv8
0.881.05433.0Hadden et al. 2014TICv8
53560.881.05433.0Q1-Q17 DR25 KOI TableTICv8
53560.881.05433.0Q1-Q17 DR24 KOI TableTICv8
53850.940.988.50433.0Q1-Q8 KOI TableTICv8
53590.930.95-0.17433.0TICv8TICv8
52891.27433.0Latham et al. 2005TICv8
53850.98433.0Q1-Q6 KOI TableTICv8
433.0Q1-Q17 DR25 Supplemental KOI TableTICv8
53850.98433.0Batalha et al. 2013TICv8
53850.98433.0Q1-Q6 KOI TableTICv8
433.0Q1-Q17 DR25 Supplemental KOI TableTICv8