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Stellar HostProfile

Kepler-208

Unclassified star • 775.3 pc

Records

33

literature rows

Planets

4

system count

References

15

distinct source labels

TIC: TIC 270781284

Approximate color

from effective temperature

Canonical Summary

Adopted host values from one source row

Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.

Stellar source: Morton et al. 2016 • System source: TICv8

Temperature

5951 K

5845 to 6220

29 values • 8 distinct

Mass

1.16 Msun

0.96 to 1.21

24 values • 7 distinct

Radius

1.40 Rsun

0.97 to 1.50

29 values • 10 distinct

Age

4.37 Gyr

4.37 to 4.68

2 values • 2 distinct

Distance

775.3 pc

single adopted value

33 values • 1 distinct

Planets

4

Stable across source rows

4

Scale Comparison

Radius against the Sun

Current adopted radius: 1.40 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

Kepler-208

1.40 R☉

System Layout

Known planets

4 planets linked to this host

◌

Discovery

2014

Period

4.23 days

Radius

1.63 R⊕

Mass

—

Eq. Temp

—

◌

Discovery

2014

Period

7.47 days

Radius

1.39 R⊕

Mass

—

Eq. Temp

—

◌

Discovery

2014

Period

11.13 days

Radius

1.20 R⊕

Mass

—

Eq. Temp

—

◌

Discovery

2014

Period

16.26 days

Radius

1.48 R⊕

Mass

—

Eq. Temp

—

Kepler-208 and Its Four Planets

Kepler-208 is a star located 2530 light-years away. It is 4.37 billion years old, has 1.16 solar masses, and has 1.4 solar radii. Its temperature is 5950 K. The star's reported mass estimate is larger than the Sun's, and its reported radius estimate is larger than the Sun's. Its reported temperature is hotter than the Sun's.

Four planets are known to orbit this host. All four were discovered in 2014 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. Kepler-208 b is a Super-Earth with an orbital period of 4.23 days and a radius of 1.63 Earth radii. Its reported radius estimate is larger than Earth's. Among the listed planets, Kepler-208 b has the shortest year by reported estimates and the largest radius by reported estimates.

Kepler-208 c is Earth-like. Its orbital period is 7.47 days, and its radius is 1.39 Earth radii. Its reported radius estimate is larger than Earth's. Among the listed planets, Kepler-208 c has the second-shortest year by reported estimates and the second-smallest radius by reported estimates.

Kepler-208 d is also Earth-like, with an orbital period of 11.1 days and a radius of 1.2 Earth radii. Among the listed planets, Kepler-208 d has the second-longest year by reported estimates and the smallest radius by reported estimates.

Kepler-208 e is Earth-like as well, with an orbital period of 16.3 days and a radius of 1.48 Earth radii. Its reported radius estimate is larger than Earth's. Among the listed planets, Kepler-208 e has the longest year by reported estimates and the second-largest radius by reported estimates.

Provenance

Underlying measurements and references

Evidence Summary

Rows

33

Stellar refs

14

System refs

1

Distancestable

33 values • 1 distinct

Parallaxstable

33 values • 1 distinct

Temperaturedisputed

29 values • 8 distinct

Massdisputed

24 values • 7 distinct

Radiusdisputed

29 values • 10 distinct

Agedisputed

2 values • 2 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

26 values • 7 distinct

Metallicitydisputed

19 values • 4 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
58450.960.97———775.3Q1-Q8 KOI TableTICv8
6000.91.111.32—0.31—775.3TICv8TICv8
59661.211.50———775.3Q1-Q17 DR25 KOI TableTICv8
62201.121.33———775.3Q1-Q12 KOI TableTICv8
5845—0.99———775.3Q1-Q6 KOI TableTICv8
5845—0.99———775.3Q1-Q6 KOI TableTICv8
59661.211.50———775.3Q1-Q17 DR25 KOI TableTICv8
62201.121.33———775.3Q1-Q17 DR24 KOI TableTICv8
60541.081.234.68——775.3Fulton & Petigura 2018TICv8
62201.121.33———775.3Q1-Q12 KOI TableTICv8
——————775.3Q1-Q17 DR25 Supplemental KOI TableTICv8
——————775.3Q1-Q17 DR25 Supplemental KOI TableTICv8
58450.960.97———775.3Q1-Q8 KOI TableTICv8
62201.121.33———775.3Q1-Q16 KOI TableTICv8
62201.121.33———775.3Q1-Q16 KOI TableTICv8
62201.121.33———775.3Q1-Q12 KOI TableTICv8
62201.121.33———775.3Q1-Q17 DR24 KOI TableTICv8
62201.121.33———775.3Q1-Q12 KOI TableTICv8
62201.121.33———775.3Q1-Q16 KOI TableTICv8
62201.121.33———775.3Q1-Q17 DR24 KOI TableTICv8
62201.121.33———775.3Q1-Q17 DR24 KOI TableTICv8
5943—1.26—0.25—775.3Gaia DR2TICv8
62201.121.33———775.3Q1-Q16 KOI TableTICv8
6054—1.26———775.3Berger et al. 2018TICv8
6092—1.31———775.3Rowe et al. 2014TICv8
59661.211.50———775.3Q1-Q17 DR25 KOI TableTICv8
——————775.3Q1-Q17 DR25 Supplemental KOI TableTICv8
——————775.3Q1-Q17 DR25 Supplemental KOI TableTICv8
58450.960.97———775.3Q1-Q8 KOI TableTICv8
58450.960.97———775.3Q1-Q8 KOI TableTICv8
58451.030.99———775.3Batalha et al. 2013TICv8
59511.161.404.37——775.3Morton et al. 2016TICv8
59661.211.50———775.3Q1-Q17 DR25 KOI TableTICv8