Exoplanet

K2-289 b

Orbiting K2-289

Overview

K2-289 b is an exoplanet orbiting the star K2-289, discovered in 2019 using the Transit method. It is a Neptune-sized world.

Key Measurements

Radius

9.10

Earth radii

015 R⊕

Mass (est.)

64.92

Earth masses

0500 M⊕

Orbital Period

13.2

days

0.1d10,000d

Distance

274.3

parsecs

Nearby10,000 pc

Equilibrium Temp

753

K

150 K3,500 K

Radius (Earth radii)

9.10

Mass (Earth masses)

64.92

Estimated

Equilibrium Temperature

753 K

Orbital Period

13.16 days

Distance from Earth

274.3 pc (~895 ly)

Spectral Type

Unknown

Temperature

5529 K

Mass (Solar)

0.95 M☉

Radius (Solar)

1.02 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

246.6429°, -15.7925°

Discovery Method

Transit

Discovery Year

2019

Data Sources
NASA Exoplanet Archive

Source ID: K2-289 b

System Context

K2-289 b orbits K2-289 and was reported in 2019 and was detected with the Transit method.

Published measurements list a radius of 9.1 Earth radii, a mass of 64.92 Earth masses (estimated), an orbital period of 13.16 days, and an equilibrium temperature near 753 K.

Catalog data places the system at about 274.3 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 K2-289