Exoplanet

K2-308 b

Orbiting K2-308

Overview

K2-308 b is an exoplanet orbiting the star K2-308, discovered in 2019 using the Transit method. It is a Neptune-sized world.

Key Measurements

Radius

9.92

Earth radii

015 R⊕

Mass (est.)

75.11

Earth masses

0500 M⊕

Orbital Period

3.4

days

0.1d10,000d

Distance

1314.5

parsecs

Nearby10,000 pc

Radius (Earth radii)

9.92

Mass (Earth masses)

75.11

Estimated

Equilibrium Temperature

Unknown

Parameter source: Rampalli et al. 2019

Orbital Period

3.386+0.000−0.000days

Distance from Earth

1314.5 pc (~4287 ly)

Spectral Type

Unknown

Temperature

6100 K

Mass (Solar)

1.09 M☉

Radius (Solar)

1.24 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

78.3391°, 16.4142°

Discovery Method

Transit

Discovery Year

2019

Data Sources
NASA Exoplanet Archive

Source ID: K2-308 b

System Context

K2-308 b orbits K2-308 and was reported in 2019 and was detected with the Transit method.

Published measurements list a radius of 9.92 Earth radii, a mass of 75.11 Earth masses (estimated), and an orbital period of 3.39 days.

Catalog data places the system at about 1,314.5 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 K2-308