Stellar HostProfile

KELT-21

A8 V • 470.9 pc

Records

literature rows

Planets

system count

References

distinct source labels

TIC: TIC 203189770HD: HD 332124

Approximate color

from effective temperature

Temperature

8242.8 K

7598 to 8324

4 values • 3 distinct

Mass

1.76 Msun

1.46 to 2.05

2 values • 2 distinct

Radius

1.71 Rsun

1.64 to 1.71

3 values • 3 distinct

Age

1.60 Gyr

single adopted value

1 values • 1 distinct

Luminosity

1.00 log(Lsun)

0.90 to 1.10

2 values • 2 distinct

Distance

470.9 pc

single adopted value

4 values • 1 distinct

Spectral Type

A8 V

Consistent across records

A8 V (1)

Planets

Stable across source rows

Sun

1.0 R☉ baseline

KELT-21

1.71 R☉

Discovery

2018

Period

3.61 days

Radius

17.78 R⊕

Mass

1242.7 M⊕

Eq. Temp

2051 K

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

4 values • 1 distinct

Parallaxstable

4 values • 1 distinct

Temperaturedisputed

4 values • 3 distinct

Massdisputed

2 values • 2 distinct

Radiusdisputed

3 values • 3 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

3 values • 3 distinct

Metallicitystable

1 values • 1 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
8324	2.05	1.71	—	1.10	—	470.9	TICv8	TICv8
8161.7	—	—	—	—	—	470.9	Gaia DR2	TICv8
8324	—	1.71	—	—	—	470.9	ExoFOP	TICv8
7598	1.46	1.64	1.60	0.90	A8 V	470.9	Johnson et al. 2018	TICv8

KELT-21

Adopted host values from all rows

Radius against the Sun

Known planets

KELT-21 b

Underlying measurements and references