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Stellar HostProfile

TOI-6303

Unclassified star • 152.2 pc

Records

3

literature rows

Planets

1

system count

References

4

distinct source labels

TIC: TIC 186810676

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: Hotnisky et al. 2025 • System source: TICv8

Temperature

3977 K

3848 to 3977

3 values • 2 distinct

Mass

0.64 Msun

0.61 to 0.64

2 values • 2 distinct

Radius

0.61 Rsun

0.61 to 0.63

3 values • 3 distinct

Age

6.40 Gyr

single adopted value

1 values • 1 distinct

Luminosity

-1.09 log(Lsun)

-1.11 to -1.09

2 values • 2 distinct

Distance

152.2 pc

single adopted value

3 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.61 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

TOI-6303

0.61 R☉

System Layout

Known planets

1 planets linked to this host

TOI-6303 b

Transit

◌

Discovery

2025

Period

9.49 days

Radius

11.59 R⊕

Mass

2493 M⊕

Eq. Temp

541 K

TOI-6303 and Its Jupiter-Like Planet

TOI-6303 is a star 496 light-years away with one known planet. The host star is estimated to be 6.4 billion years old, with a mass of 0.644 solar masses and a radius of 0.609 solar radii. Its temperature is 3980 K. The star's reported mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's.

The planet TOI-6303 b was discovered by transit in 2025, with repeated dips in the star's brightness helping to establish its orbital period. It completes an orbit every 9.49 days. This Jupiter-like planet has a radius of 11.6 Earth radii, larger than Earth's. Its mass is 2490 Earth masses, also larger than Earth's and roughly 7.84 times Jupiter's mass. Its mean density is 8.82 g/cm³, 1.6 times Earth's.

Provenance

Underlying measurements and references

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Evidence Summary

Rows

3

Stellar refs

3

System refs

1

Distancestable

3 values • 1 distinct

Parallaxstable

3 values • 1 distinct

Temperaturedisputed

3 values • 2 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

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
38480.610.63—-1.11—152.2TICv8TICv8
39770.640.616.40-1.09—152.2Hotnisky et al. 2025TICv8
3848—0.63———152.2ExoFOPTICv8