Exoplanet

TOI-1859 b

Orbiting TOI-1859

Overview

TOI-1859 b is an exoplanet orbiting the star TOI-1859, discovered in 2023 using the Transit method. It is a Neptune-sized world.

Key Measurements

Radius

9.75

Earth radii

015 R⊕

Mass (est.)

73.01

Earth masses

0500 M⊕

Orbital Period

63.5

days

0.1d10,000d

Distance

224.4

parsecs

Nearby10,000 pc

Radius (Earth radii)

9.75

Mass (Earth masses)

73.01

Estimated

Equilibrium Temperature

Unknown

Parameter source: Dong et al. 2023

Orbital Period

63.483+0.000−0.000days

Semi-Major Axis

0.3370+0.0440−0.0360au

Eccentricity

0.5700+0.1200−0.1600

Argument of Periastron

79.9+83.2−48.2deg

Distance from Earth

224.4 pc (~732 ly)

Spectral Type

Unknown

Temperature

6341 K

Mass (Solar)

1.29 M☉

Radius (Solar)

1.36 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

279.8318°, 69.5229°

Discovery Method

Transit

Discovery Year

2023

Data Sources
NASA Exoplanet Archive

Source ID: TOI-1859 b

System Context

TOI-1859 b orbits TOI-1859 and was reported in 2023 and was detected with the Transit method.

Published measurements list a radius of 9.75 Earth radii, a mass of 73.01 Earth masses (estimated), and an orbital period of 63.48 days.

Catalog data places the system at about 224.4 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-1859