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Stellar HostProfile

K2-21

M0.0 • 83.64 pc

Records

9

literature rows

Planets

2

system count

References

9

distinct source labels

TIC: TIC 240766850

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

4045 K

4006 to 4222.1

6 values • 6 distinct

Mass

0.64 Msun

0.52 to 0.68

4 values • 4 distinct

Radius

0.59 Rsun

0.46 to 0.65

8 values • 6 distinct

Age

1 Gyr

single adopted value

1 values • 1 distinct

Luminosity

-1.01 log(Lsun)

-1.03 to -0.98

2 values • 2 distinct

Distance

83.64 pc

single adopted value

9 values • 1 distinct

Spectral Type

M0.0

Consistent across records

M0.0 (1)

Planets

2

Stable across source rows

2

System Layout

Known planets

2 planets linked to this host

K2-21 b

Transit

Discovery

2015

Period

9.32 days

Radius

1.25 R⊕

Mass

Eq. Temp

K2-21 c

Transit

Discovery

2015

Period

15.50 days

Radius

1.53 R⊕

Mass

Eq. Temp

Provenance

Underlying measurements and references

Evidence Summary

Rows

9

Stellar refs

8

System refs

1

Distancestable

9 values • 1 distinct

Parallaxstable

9 values • 1 distinct

Temperaturedisputed

6 values • 6 distinct

Massdisputed

4 values • 4 distinct

Radiusdisputed

8 values • 6 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

2 values • 2 distinct

Metallicitystable

1 values • 1 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
4213.50.58-1.0383.64Gaia DR2TICv8
0.5883.64Kruse et al. 2019TICv8
0.5883.64Kruse et al. 2019TICv8
4222.10.680.6583.64Dressing et al. 2017TICv8
83.64Barros et al. 2016TICv8
40430.640.601M0.083.64Petigura et al. 2015TICv8
40470.630.65-0.9883.64TICv8TICv8
40060.520.4683.64Crossfield et al. 2016TICv8
40240.6083.64Vanderburg et al. 2016TICv8