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Stellar HostProfile

K2-19

G9 • 289.8 pc

Records

19

literature rows

Planets

3

system count

References

19

distinct source labels

TIC: TIC 281885301

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

5347.5 K

5230 to 5748

16 values • 12 distinct

Mass

0.90 Msun

0.84 to 0.99

13 values • 11 distinct

Radius

0.84 Rsun

0.81 to 1.01

18 values • 14 distinct

Age

4.85 Gyr

1.70 to 8

2 values • 2 distinct

Luminosity

-0.30 log(Lsun)

-0.31 to -0.29

2 values • 2 distinct

Distance

289.8 pc

single adopted value

19 values • 1 distinct

Spectral Type

G9

Multiple classifications reported

G9 (1), G9 V (1)

Planets

3

Stable across source rows

3

System Layout

Known planets

3 planets linked to this host

K2-19 b

Transit

Discovery

2015

Period

7.92 days

Radius

7.11 R⊕

Mass

Eq. Temp

913 K

K2-19 d

Transit

Discovery

2016

Period

2.51 days

Radius

1.26 R⊕

Mass

Eq. Temp

K2-19 c

Transit

Discovery

2015

Period

11.91 days

Radius

4.31 R⊕

Mass

Eq. Temp

797 K

Provenance

Underlying measurements and references

Evidence Summary

Rows

19

Stellar refs

18

System refs

1

Distancestable

19 values • 1 distinct

Parallaxstable

19 values • 1 distinct

Temperaturedisputed

16 values • 12 distinct

Massdisputed

13 values • 11 distinct

Radiusdisputed

18 values • 14 distinct

Agedisputed

2 values • 2 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

13 values • 10 distinct

Metallicitydisputed

12 values • 9 distinct

Spectral Typedisputed

2 values • 2 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
53500.890.821.70G9289.8Almenara et al. 2025TICv8
53900.950.91289.8Barros et al. 2015TICv8
53450.900.918289.8Narita et al. 2015TICv8
0.82289.8Kruse et al. 2019TICv8
57480.991.01289.8Crossfield et al. 2016TICv8
53680.84289.8Vanderburg et al. 2016TICv8
54300.930.86289.8Dai et al. 2016TICv8
5336.30.82-0.31289.8Gaia DR2TICv8
54300.930.86G9 V289.8Sinukoff et al. 2016TICv8
53220.880.82289.8Howard et al. 2025TICv8
53220.84289.8ExoFOPTICv8
0.82289.8Kruse et al. 2019TICv8
53220.920.84-0.29289.8TICv8TICv8
53910.900.83289.8Mayo et al. 2018TICv8
53220.880.82289.8Petigura et al. 2020TICv8
289.8Barros et al. 2016TICv8
55190.840.81289.8Montet et al. 2015TICv8
52500.920.88289.8Nespral et al. 2017TICv8
52300.890.88289.8Armstrong et al. 2015TICv8