Stellar HostProfile

TOI-5800

K3 V • 42.91 pc

Records

literature rows

Planets

system count

References

distinct source labels

TIC: TIC 151759246

Approximate color

from effective temperature

Stellar source: Naponiello et al. 2025 • System source: TICv8

Temperature

4850 K

4821 to 4850

4 values • 3 distinct

Mass

0.78 Msun

0.78 to 0.79

3 values • 3 distinct

Radius

0.77 Rsun

0.77 to 0.82

4 values • 3 distinct

Age

8.10 Gyr

2.50 to 8.10

2 values • 2 distinct

Luminosity

-0.51 log(Lsun)

-0.51 to -0.49

3 values • 3 distinct

Distance

42.91 pc

single adopted value

4 values • 1 distinct

Spectral Type

K3 V

Consistent across records

K3 V (2)

Planets

Stable across source rows

Sun

1.0 R☉ baseline

TOI-5800

0.77 R☉

Discovery

2025

Period

2.63 days

Radius

2.46 R⊕

Mass

9.50 M⊕

Eq. Temp

1108 K

TOI-5800 b: A Super-Earth in a Close Orbit

TOI-5800 is a K3 V star, a main-sequence dwarf cooler than the Sun, located 140 light-years away. Its spectral type places it in the K class, making it cooler and redder than G-type stars like the Sun. The star has an age of 8.1 billion years, a mass of 0.778 solar masses, a radius of 0.773 solar radii, and a temperature of 4850 K. Its reported mass and radius are both smaller than the Sun's, and its temperature is cooler.

One planet orbits this host: TOI-5800 b, a Super-Earth discovered in 2025 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. The planet completes an orbit every 2.63 days. Its radius is 2.46 Earth radii, larger than Earth's, and its mass is 9.5 Earth masses, also larger than Earth's. Its mean density is 3.52 g/cm³, 0.638 times Earth's.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

4 values • 1 distinct

Parallaxstable

4 values • 1 distinct

Temperaturedisputed

4 values • 3 distinct

Massdisputed

3 values • 3 distinct

Radiusdisputed

4 values • 3 distinct

Agedisputed

2 values • 2 distinct

Luminositydisputed

3 values • 3 distinct

Surface Gravitydisputed

3 values • 3 distinct

Metallicitydisputed

2 values • 2 distinct

Spectral Typestable

2 values • 1 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
4830	0.79	0.80	2.50	-0.51	K3 V	42.91	Jenkins et al. 2025	TICv8
4821	—	0.82	—	—	—	42.91	ExoFOP	TICv8
4850	0.78	0.77	8.10	-0.51	K3 V	42.91	Naponiello et al. 2025	TICv8
4821	0.78	0.82	—	-0.49	—	42.91	TICv8	TICv8

TOI-5800

Adopted host values from one source row

Radius against the Sun

Known planets

TOI-5800 b

TOI-5800 b: A Super-Earth in a Close Orbit

Underlying measurements and references