Exoplanet

HAT-P-23 b

Orbiting HAT-P-23

Overview

HAT-P-23 b is an exoplanet orbiting the star HAT-P-23, discovered in 2010 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

15.33

Earth radii

015 R⊕

Mass

664.24

Earth masses

0500 M⊕

Orbital Period

1.2

days

0.1d10,000d

Distance

364.8

parsecs

Nearby10,000 pc

Equilibrium Temp

2056

K

150 K3,500 K

Radius (Earth radii)

15.33

Mass (Earth masses)

664.24

Measured

Equilibrium Temperature

2056 K

Parameter source: Bakos et al. 2010

Orbital Period

1.213+0.0000.000days

Semi-Major Axis

0.0232+0.00020.0002au

Planet Mass (Earth masses)

664.24+35.2835.28

Planet Mass (Jupiter masses)

2.0900+0.11100.1110

Eccentricity

0.1060+0.04400.0440

Argument of Periastron

118.0+25.025.0deg

Radial Velocity Semi-Amplitude

368.50+17.6017.60m/s

Distance from Earth

364.8 pc (~1190 ly)

Spectral Type

G0

Temperature

5905 K

Mass (Solar)

1.13 M☉

Radius (Solar)

1.20 R☉

Luminosity

0.20 log L☉

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

306.1239°, 16.7621°

Discovery Method

Transit

Discovery Year

2010

Data Sources

Source ID: HAT-P-23 b

System Context

HAT-P-23 b orbits HAT-P-23 and was reported in 2010 and was detected with the Transit method.

Published measurements list a radius of 15.33 Earth radii, a mass of 664.24 Earth masses, an orbital period of 1.21 days, and an equilibrium temperature near 2,056 K.

Catalog data places the system at about 364.8 parsecs from Earth, a host star classified as G0, 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 HAT-P-23
HAT-P-23 b