Exoplanet

TOI-3877 b

Orbiting TOI-3877

Overview

TOI-3877 b is an exoplanet orbiting the star TOI-3877, discovered in 2025 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

11.68

Earth radii

015 R⊕

Mass

99.80

Earth masses

0500 M⊕

Orbital Period

4.1

days

0.1d10,000d

Distance

493.8

parsecs

Nearby10,000 pc

Equilibrium Temp

1445

K

150 K3,500 K

Radius (Earth radii)

11.68

Mass (Earth masses)

99.80

Measured

Equilibrium Temperature

1445 K

Parameter source: Yee et al. 2025

Orbital Period

4.124+0.000−0.000days

Semi-Major Axis

0.0529+0.0010−0.0014au

Planet Mass (Earth masses)

99.80+21.93−21.29

Planet Mass (Jupiter masses)

0.3140+0.0690−0.0670

Eccentricity

<0.22

Radial Velocity Semi-Amplitude

36.10+7.60−7.60m/s

Distance from Earth

493.8 pc (~1610 ly)

Spectral Type

Unknown

Temperature

5731 K

Mass (Solar)

1.16 M☉

Radius (Solar)

1.45 R☉

Luminosity

0.31 log L☉

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

170.4545°, 33.9914°

Discovery Method

Transit

Discovery Year

2025

Data Sources
NASA Exoplanet Archive

Source ID: TOI-3877 b

System Context

TOI-3877 b orbits TOI-3877 and was reported in 2025 and was detected with the Transit method.

Published measurements list a radius of 11.68 Earth radii, a mass of 99.8 Earth masses, an orbital period of 4.12 days, and an equilibrium temperature near 1,445 K.

Catalog data places the system at about 493.8 parsecs from Earth and 1 known planet in the system.

Host star

Explore the stellar record for this system to compare temperature, spectral type, and known planets.

Open TOI-3877