Exoplanet

K2-403 b

Orbiting K2-403

Overview

K2-403 b is an exoplanet orbiting the star K2-403, discovered in 2022 using the Transit method. It is a Neptune-sized world.

Key Measurements

Radius

5.33

Earth radii

015 R⊕

Mass (est.)

26.21

Earth masses

0500 M⊕

Orbital Period

33.6

days

0.1d10,000d

Distance

246.6

parsecs

Nearby10,000 pc

Radius (Earth radii)

5.33

Mass (Earth masses)

26.21

Estimated

Equilibrium Temperature

Unknown

Parameter source: Christiansen et al. 2022

Orbital Period

33.590+0.001−0.001days

Distance from Earth

246.6 pc (~804 ly)

Spectral Type

Unknown

Temperature

5511 K

Mass (Solar)

0.78 M☉

Radius (Solar)

0.89 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

164.1894°, 9.6739°

Discovery Method

Transit

Discovery Year

2022

Data Sources
NASA Exoplanet Archive

Source ID: K2-403 b

System Context

K2-403 b orbits K2-403 and was reported in 2022 and was detected with the Transit method.

Published measurements list a radius of 5.33 Earth radii, a mass of 26.21 Earth masses (estimated), and an orbital period of 33.59 days.

Catalog data places the system at about 246.6 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 K2-403