Exoplanet

K2-17 b

Orbiting K2-17

Overview

K2-17 b is an exoplanet orbiting the star K2-17, discovered in 2015 using the Transit method. It is a Super-Earth world.

Key Measurements

Radius

2.23

Earth radii

015 R⊕

Mass (est.)

5.96

Earth masses

0500 M⊕

Orbital Period

18.0

days

0.1d10,000d

Distance

125.1

parsecs

Nearby10,000 pc

Equilibrium Temp

487

K

150 K3,500 K

Radius (Earth radii)

2.23

Mass (Earth masses)

5.96

Estimated

Equilibrium Temperature

487 K

Orbital Period

17.97 days

Distance from Earth

125.1 pc (~408 ly)

Spectral Type

Unknown

Temperature

4320 K

Mass (Solar)

0.71 M☉

Radius (Solar)

0.66 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

178.3297°, 6.4123°

Discovery Method

Transit

Discovery Year

2015

Data Sources
NASA Exoplanet Archive

Source ID: K2-17 b

System Context

K2-17 b orbits K2-17 and was reported in 2015 and was detected with the Transit method.

Published measurements list a radius of 2.23 Earth radii, a mass of 5.96 Earth masses (estimated), an orbital period of 17.97 days, and an equilibrium temperature near 487 K.

Catalog data places the system at about 125.1 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 K2-17