Exoplanet

TOI-1221 b

Orbiting TOI-1221

Overview

TOI-1221 b is an exoplanet orbiting the star TOI-1221, discovered in 2023 using the Transit method. It is a Mini-Neptune world.

Key Measurements

Radius

2.91

Earth radii

015 R⊕

Mass

1112.40

Earth masses

0500 M⊕

Orbital Period

91.7

days

0.1d10,000d

Distance

138.4

parsecs

Nearby10,000 pc

Equilibrium Temp

440

K

150 K3,500 K

Radius (Earth radii)

2.91

Mass (Earth masses)

1112.40

Measured

Equilibrium Temperature

440 K

Orbital Period

91.68 days

Distance from Earth

138.4 pc (~451 ly)

Spectral Type

Unknown

Temperature

5592 K

Mass (Solar)

0.93 M☉

Radius (Solar)

1.03 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

107.9210°, -65.5089°

Discovery Method

Transit

Discovery Year

2023

Data Sources

Source ID: TOI-1221 b

System Context

TOI-1221 b orbits TOI-1221 and was reported in 2023 and was detected with the Transit method.

Published measurements list a radius of 2.91 Earth radii, a mass of 1,112.4 Earth masses, an orbital period of 91.68 days, and an equilibrium temperature near 440 K.

Catalog data places the system at about 138.4 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-1221