Exoplanet

TOI-3984 A b

Orbiting TOI-3984 A

Overview

TOI-3984 A b is an exoplanet orbiting the star TOI-3984 A, discovered in 2023 using the Transit method. It is a Neptune-sized world.

Key Measurements

Radius

7.90

Earth radii

015 R⊕

Mass

44.00

Earth masses

0500 M⊕

Orbital Period

4.4

days

0.1d10,000d

Distance

108.9

parsecs

Nearby10,000 pc

Equilibrium Temp

563

K

150 K3,500 K

Radius (Earth radii)

7.90

Mass (Earth masses)

44.00

Measured

Equilibrium Temperature

563 K

Orbital Period

4.35 days

Distance from Earth

108.9 pc (~355 ly)

Spectral Type

M4+/-0.5

Temperature

3476 K

Mass (Solar)

0.49 M☉

Radius (Solar)

0.47 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

2

Coordinates (RA, Dec)

226.3371°, 36.7870°

Discovery Method

Transit

Discovery Year

2023

Data Sources
NASA Exoplanet Archive

Source ID: TOI-3984 A b

System Context

TOI-3984 A b orbits TOI-3984 A and was reported in 2023 and was detected with the Transit method.

Published measurements list a radius of 7.9 Earth radii, a mass of 44 Earth masses, an orbital period of 4.35 days, and an equilibrium temperature near 563 K.

Catalog data places the system at about 108.9 parsecs from Earth, a host star classified as M4+/-0.5, 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-3984 A