Exoplanet

KELT-18 b

Orbiting KELT-18

Overview

KELT-18 b is an exoplanet orbiting the star KELT-18, discovered in 2017 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

17.60

Earth radii

015 R⊕

Mass

375.04

Earth masses

0500 M⊕

Orbital Period

2.9

days

0.1d10,000d

Distance

321.4

parsecs

Nearby10,000 pc

Equilibrium Temp

2085

K

150 K3,500 K

Radius (Earth radii)

17.60

Mass (Earth masses)

375.04

Measured

Equilibrium Temperature

2085 K

Orbital Period

2.87 days

Distance from Earth

321.4 pc (~1048 ly)

Spectral Type

F4 V

Temperature

6670 K

Mass (Solar)

1.52 M☉

Radius (Solar)

1.91 R☉

Luminosity

0.81 log L☉

Planets in System

1

Stars in System

2

Coordinates (RA, Dec)

216.5238°, 59.4443°

Discovery Method

Transit

Discovery Year

2017

Data Sources
NASA Exoplanet Archive

Source ID: KELT-18 b

System Context

KELT-18 b orbits KELT-18 and was reported in 2017 and was detected with the Transit method.

Published measurements list a radius of 17.6 Earth radii, a mass of 375.04 Earth masses, an orbital period of 2.87 days, and an equilibrium temperature near 2,085 K.

Catalog data places the system at about 321.4 parsecs from Earth, a host star classified as F4 V, 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 KELT-18