Exoplanet

TOI-3884 b

Orbiting TOI-3884

Overview

TOI-3884 b is an exoplanet orbiting the star TOI-3884, discovered in 2022 using the Transit method. It is a Neptune-sized world.

Key Measurements

Radius

6.43

Earth radii

015 R⊕

Mass

32.59

Earth masses

0500 M⊕

Orbital Period

4.5

days

0.1d10,000d

Distance

43.1

parsecs

Nearby10,000 pc

Equilibrium Temp

441

K

150 K3,500 K

Radius (Earth radii)

6.43

Mass (Earth masses)

32.59

Measured

Equilibrium Temperature

441 K

Parameter source: Libby-Roberts et al. 2023

Orbital Period

4.545+0.000−0.000days

Semi-Major Axis

0.0361+0.0008−0.0008au

Planet Mass (Earth masses)

32.59+7.31−7.38

Planet Mass (Jupiter masses)

0.1025+0.0230−0.0232

Eccentricity

0.0600+0.0600−0.0400

Argument of Periastron

-112.0+245.0−2.0deg

Radial Velocity Semi-Amplitude

28.03+6.06−6.23m/s

Distance from Earth

43.1 pc (~141 ly)

Spectral Type

Unknown

Temperature

3180 K

Mass (Solar)

0.30 M☉

Radius (Solar)

0.30 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

181.5718°, 12.5070°

Discovery Method

Transit

Discovery Year

2022

Data Sources
NASA Exoplanet Archive

Source ID: TOI-3884 b

System Context

TOI-3884 b orbits TOI-3884 and was reported in 2022 and was detected with the Transit method.

Published measurements list a radius of 6.43 Earth radii, a mass of 32.59 Earth masses, an orbital period of 4.54 days, and an equilibrium temperature near 441 K.

Catalog data places the system at about 43.1 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-3884