Exoplanet

KELT-2 A b

Orbiting KELT-2 A

Overview

KELT-2 A b is an exoplanet orbiting the star KELT-2 A, discovered in 2012 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

15.13

Earth radii

015 R⊕

Mass

540.31

Earth masses

0500 M⊕

Orbital Period

4.1

days

0.1d10,000d

Distance

134.1

parsecs

Nearby10,000 pc

Radius (Earth radii)

15.13

Mass (Earth masses)

540.31

Measured

Equilibrium Temperature

Unknown

Parameter source: Stassun et al. 2017

Orbital Period

4.114+0.000−0.000days

Planet Mass (Earth masses)

540.31+69.92−69.92

Planet Mass (Jupiter masses)

1.7000+0.2200−0.2200

Eccentricity

0.0000

Radial Velocity Semi-Amplitude

161.10+7.80−7.80m/s

Distance from Earth

134.1 pc (~437 ly)

Spectral Type

Unknown

Temperature

6327 K

Mass (Solar)

1.54 M☉

Radius (Solar)

1.93 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

2

Coordinates (RA, Dec)

92.6640°, 30.9571°

Discovery Method

Transit

Discovery Year

2012

Data Sources
NASA Exoplanet Archive

Source ID: KELT-2 A b

System Context

KELT-2 A b orbits KELT-2 A and was reported in 2012 and was detected with the Transit method.

Published measurements list a radius of 15.13 Earth radii, a mass of 540.31 Earth masses, and an orbital period of 4.11 days.

Catalog data places the system at about 134.1 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 KELT-2 A