Exoplanet

K2-402 b

Orbiting K2-402

Overview

K2-402 b is an exoplanet orbiting the star K2-402, discovered in 2022 using the Transit method. It is a Mini-Neptune world.

Key Measurements

Radius

2.68

Earth radii

015 R⊕

Mass (est.)

8.14

Earth masses

0500 M⊕

Orbital Period

17.3

days

0.1d10,000d

Distance

523.1

parsecs

Nearby10,000 pc

Radius (Earth radii)

2.68

Mass (Earth masses)

8.14

Estimated

Equilibrium Temperature

Unknown

Parameter source: Christiansen et al. 2022

Orbital Period

17.275+0.003−0.003days

Distance from Earth

523.1 pc (~1706 ly)

Spectral Type

Unknown

Temperature

5716 K

Mass (Solar)

0.94 M☉

Radius (Solar)

1.28 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

161.4519°, 6.4193°

Discovery Method

Transit

Discovery Year

2022

Data Sources
NASA Exoplanet Archive

Source ID: K2-402 b

System Context

K2-402 b orbits K2-402 and was reported in 2022 and was detected with the Transit method.

Published measurements list a radius of 2.68 Earth radii, a mass of 8.14 Earth masses (estimated), and an orbital period of 17.27 days.

Catalog data places the system at about 523.1 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 K2-402