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Stellar HostProfile

TOI-4603

F • 225.6 pc

Records

3

literature rows

Planets

1

system count

References

4

distinct source labels

TIC: TIC 437856897HD: HD 245134

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: Khandelwal et al. 2023 • System source: TICv8

Temperature

6264 K

6169.1 to 6264

3 values • 3 distinct

Mass

1.76 Msun

1.18 to 1.76

2 values • 2 distinct

Radius

2.74 Rsun

2.68 to 2.74

3 values • 3 distinct

Age

1.64 Gyr

single adopted value

1 values • 1 distinct

Luminosity

1.02 log(Lsun)

0.97 to 1.02

2 values • 2 distinct

Distance

225.6 pc

single adopted value

3 values • 1 distinct

Spectral Type

F

Consistent across records

F (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 2.74 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

TOI-4603

2.74 R☉

System Layout

Known planets

1 planets linked to this host

TOI-4603 b

Transit

◌

Discovery

2023

Period

7.25 days

Radius

11.68 R⊕

Mass

4096.8 M⊕

Eq. Temp

1677 K

TOI-4603 b: A Giant Planet Around an F-Type Star

TOI-4603 is an F-type star 736 light-years away with a single known planet. The star is 1.64 billion years old, with a mass of 1.77 solar masses and a radius of 2.74 solar radii. Its temperature is 6260 K, making it larger, more massive, and hotter than the Sun.

The planet TOI-4603 b was discovered by the transit method in 2023, which detects the small dip in brightness when a planet crosses in front of its star. It is a Jupiter-like planet, with a radius of 11.7 Earth radii, well above the threshold for that class. Its minimum mass is 4100 Earth masses, which is roughly 12.9 times Jupiter's mass. The planet completes one orbit every 7.25 days.

TOI-4603 b's mean density is 14.2 g/cm³, 2.57 times Earth's - an unusually high value for a planet of its size. Its radius is larger than Earth's, and its mass is larger than Earth's as well.

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 • 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

Metallicitydisputed

2 values • 2 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
62641.762.741.641.02F225.6Khandelwal et al. 2023TICv8
6169.11.182.68—0.97—225.6TICv8TICv8
6169.1—2.68———225.6ExoFOPTICv8