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Stellar HostProfile

iot Dra

K2 III • 31.33 pc

Records

12

literature rows

Planets

2

system count

References

13

distinct source labels

HD: HD 137759HIP: HIP 75458TIC: TIC 165722603

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

4541.0 K

4504 to 4750

8 values • 8 distinct

Mass

1.05 Msun

1.05 to 1.54

5 values • 3 distinct

Radius

12.57 Rsun

11.79 to 12.88

3 values • 3 distinct

Age

2.65 Gyr

single adopted value

1 values • 1 distinct

Luminosity

1.77 log(Lsun)

1.72 to 1.82

2 values • 2 distinct

Distance

31.33 pc

single adopted value

12 values • 1 distinct

Spectral Type

K2 III

Multiple classifications reported

K2 III (3), K0 (1)

Planets

2

Stable across source rows

2

Scale Comparison

Radius against the Sun

Current adopted radius: 12.57 R☉ • circles scaled linearly by radius

Sun

1.0 R☉ baseline

iot Dra

12.57 R☉

System Layout

Known planets

2 planets linked to this host

iot Dra c

Radial Velocity

Discovery

2021

Period

25000 days

Radius

Mass

4958.1 M⊕

Eq. Temp

iot Dra b

Radial Velocity

Discovery

2002

Period

536 days

Radius

Mass

2828.6 M⊕

Eq. Temp

Provenance

Underlying measurements and references

Evidence Summary

Rows

12

Stellar refs

12

System refs

1

Distancestable

12 values • 1 distinct

Parallaxstable

12 values • 1 distinct

Temperaturedisputed

8 values • 8 distinct

Massdisputed

5 values • 3 distinct

Radiusdisputed

3 values • 3 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

5 values • 5 distinct

Metallicitydisputed

6 values • 6 distinct

Spectral Typedisputed

4 values • 2 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
45041.5411.792.651.72K2 III31.33Hill et al. 2021TICv8
462831.33Maldonado et al. 2015TICv8
45301.0531.33Frink et al. 2002TICv8
45481.0531.33Butler et al. 2006TICv8
475031.33Santos et al. 2003TICv8
K2 III31.33Garrison & Beattie 1998TICv8
K031.33Cannon & Pickering 1918TICv8
4534.131.33TICv8TICv8
1.0512.8831.33Kane et al. 2010TICv8
K2 III31.33Gray et al. 2003TICv8
45281.1431.33Mortier et al. 2013TICv8
464212.571.8231.33Gaia DR2TICv8