Exoplanet

KELT-23 A b

Orbiting KELT-23 A

Overview

KELT-23 A b is an exoplanet orbiting the star KELT-23 A, discovered in 2019 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

14.83

Earth radii

015 R⊕

Mass

298.12

Earth masses

0500 M⊕

Orbital Period

2.3

days

0.1d10,000d

Distance

126.3

parsecs

Nearby10,000 pc

Equilibrium Temp

1561

K

150 K3,500 K

Radius (Earth radii)

14.83

Mass (Earth masses)

298.12

Measured

Equilibrium Temperature

1561 K

Parameter source: Johns et al. 2019

Orbital Period

2.255+0.000−0.000days

Semi-Major Axis

0.0330+0.0007−0.0006au

Planet Mass (Earth masses)

298.12+15.26−13.98

Planet Mass (Jupiter masses)

0.9380+0.0480−0.0440

Eccentricity

0.0000

Epoch of Periastron

2458007.32+0.00−0.00days(BJD-TDB)

Radial Velocity Semi-Amplitude

150.60+4.40−4.30m/s

Distance from Earth

126.3 pc (~412 ly)

Spectral Type

G2 V

Temperature

5899 K

Mass (Solar)

0.94 M☉

Radius (Solar)

1.00 R☉

Luminosity

0.03 log L☉

Planets in System

1

Stars in System

2

Coordinates (RA, Dec)

232.1466°, 66.3587°

Discovery Method

Transit

Discovery Year

2019

Data Sources
NASA Exoplanet Archive

Source ID: KELT-23 A b

System Context

KELT-23 A b orbits KELT-23 A and was reported in 2019 and was detected with the Transit method.

Published measurements list a radius of 14.83 Earth radii, a mass of 298.12 Earth masses, an orbital period of 2.26 days, and an equilibrium temperature near 1,561 K.

Catalog data places the system at about 126.3 parsecs from Earth, a host star classified as G2 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-23 A