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Stellar HostProfile

WASP-18

F6 • 123.5 pc

Records

18

literature rows

Planets

2

system count

References

19

distinct source labels

HD: HD 10069HIP: HIP 7562TIC: TIC 100100827

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

6400 K

6226 to 6526

15 values • 7 distinct

Mass

1.27 Msun

1.20 to 1.46

12 values • 11 distinct

Radius

1.24 Rsun

0.81 to 1.36

13 values • 12 distinct

Age

0.85 Gyr

0.40 to 1.57

6 values • 5 distinct

Luminosity

0.39 log(Lsun)

0.38 to 0.43

3 values • 3 distinct

Distance

123.5 pc

single adopted value

18 values • 1 distinct

Spectral Type

F6

Multiple classifications reported

F6 (1), F6 IV-V (1), F6 IV/V (1), F8 (1)

Planets

2

Stable across source rows

2

System Layout

Known planets

2 planets linked to this host

WASP-18 c

Transit Timing Variations

Discovery

2019

Period

2.16 days

Radius

Mass

55.20 M⊕

Eq. Temp

WASP-18 b

Transit

Discovery

2009

Period

0.94 days

Radius

13.06 R⊕

Mass

3314.8 M⊕

Eq. Temp

Provenance

Underlying measurements and references

Evidence Summary

Rows

18

Stellar refs

18

System refs

1

Distancestable

18 values • 1 distinct

Parallaxstable

18 values • 1 distinct

Temperaturedisputed

15 values • 7 distinct

Massdisputed

12 values • 11 distinct

Radiusdisputed

13 values • 12 distinct

Agedisputed

6 values • 5 distinct

Luminositydisputed

3 values • 3 distinct

Surface Gravitydisputed

10 values • 9 distinct

Metallicitydisputed

11 values • 6 distinct

Spectral Typedisputed

4 values • 4 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
65261.230.81123.5Mortier et al. 2013TICv8
64551.271.230.40123.5Southworth 2012TICv8
64001.35123.5ExoFOPTICv8
62261.201.350.39123.5TICv8TICv8
64311.461.26123.5Shporer et al. 2019TICv8
F6 IV/V123.5Michigan Catalog, Vol. 2TICv8
64001.281.231123.5Southworth et al. 2009TICv8
64001.261.220.50123.5Southworth 2010TICv8
F8123.5Cannon & Pickering 1918TICv8
6400123.5Hellier et al. 2009TICv8
64001.241.36F6123.5Triaud et al. 2010TICv8
1.28123.5Knutson et al. 2014TICv8
64311.461.29123.5Stassun et al. 2017TICv8
64321.291.321.570.43123.5Cortés-Zuleta et al. 2020TICv8
6462.01.240.38123.5Gaia DR2TICv8
64001.221.23123.5Pearson 2019TICv8
64001.251.221123.5Bonomo et al. 2017TICv8
64000.70F6 IV-V123.5Salz et al. 2015TICv8