Exoplanet

TOI-1691 b

Orbiting TOI-1691

Overview

TOI-1691 b is an exoplanet orbiting the star TOI-1691, discovered in 2024 using the Transit method. It is a Mini-Neptune world.

Key Measurements

Radius

3.66

Earth radii

015 R⊕

Mass (est.)

13.83

Earth masses

0500 M⊕

Orbital Period

16.7

days

0.1d10,000d

Distance

111.4

parsecs

Nearby10,000 pc

Radius (Earth radii)

3.66

Mass (Earth masses)

13.83

Estimated

Equilibrium Temperature

Unknown

Parameter source: Crossfield et al. 2025

Orbital Period

16.737+0.000−0.000days

Semi-Major Axis

0.1294+0.0057−0.0063au

Distance from Earth

111.4 pc (~363 ly)

Spectral Type

Unknown

Temperature

5759 K

Mass (Solar)

1.03 M☉

Radius (Solar)

1.00 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

272.4041°, 86.8603°

Discovery Method

Transit

Discovery Year

2024

Data Sources
NASA Exoplanet Archive

Source ID: TOI-1691 b

System Context

TOI-1691 b orbits TOI-1691 and was reported in 2024 and was detected with the Transit method.

Published measurements list a radius of 3.66 Earth radii, a mass of 13.83 Earth masses (estimated), and an orbital period of 16.74 days.

Catalog data places the system at about 111.4 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-1691