Exoplanet

XO-5 b

Orbiting XO-5

Overview

XO-5 b is an exoplanet orbiting the star XO-5, discovered in 2008 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

12.78

Earth radii

015 R⊕

Mass

378.20

Earth masses

0500 M⊕

Orbital Period

4.2

days

0.1d10,000d

Distance

276.2

parsecs

Nearby10,000 pc

Equilibrium Temp

1230

K

150 K3,500 K

Radius (Earth radii)

12.78

Mass (Earth masses)

378.20

Measured

Equilibrium Temperature

1230 K

Parameter source: Smith 2015

Orbital Period

4.188+0.000−0.000days

Semi-Major Axis

0.0515+0.0005−0.0005au

Planet Mass (Earth masses)

378.20+9.53−9.53

Planet Mass (Jupiter masses)

1.1900+0.0300−0.0300

Eccentricity

0.0000

Radial Velocity Semi-Amplitude

146.00+3.00−3.00m/s

Distance from Earth

276.2 pc (~901 ly)

Spectral Type

Unknown

Temperature

5430 K

Mass (Solar)

1.04 M☉

Radius (Solar)

1.13 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

116.7164°, 39.0945°

Discovery Method

Transit

Discovery Year

2008

Data Sources
NASA Exoplanet Archive

Source ID: XO-5 b

System Context

XO-5 b orbits XO-5 and was reported in 2008 and was detected with the Transit method.

Published measurements list a radius of 12.78 Earth radii, a mass of 378.2 Earth masses, an orbital period of 4.19 days, and an equilibrium temperature near 1,230 K.

Catalog data places the system at about 276.2 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 XO-5
XO-5 b