Exoplanet

HD 80653 b

Orbiting HD 80653

Overview

HD 80653 b is an exoplanet orbiting the star HD 80653, discovered in 2020 using the Transit method. It is a Super-Earth world.

Key Measurements

Radius

1.62

Earth radii

015 R⊕

Mass

5.61

Earth masses

0500 M⊕

Orbital Period

0.7

days

0.1d10,000d

Distance

109.9

parsecs

Nearby10,000 pc

Equilibrium Temp

2438

K

150 K3,500 K

Radius (Earth radii)

1.62

Mass (Earth masses)

5.61

Measured

Equilibrium Temperature

2438 K

Parameter source: Naponiello et al. 2026

Orbital Period

0.720+0.0000.000days

Semi-Major Axis

0.0166+0.00070.0007au

Planet Mass (Earth masses)

5.61+0.380.37

Planet Mass (Jupiter masses)

0.0177+0.00120.0012

Eccentricity

0.0000

Argument of Periastron

90.0deg

Radial Velocity Semi-Amplitude

3.66+0.200.20m/s

Distance from Earth

109.9 pc (~358 ly)

Spectral Type

G0 V

Temperature

5959 K

Mass (Solar)

1.15 M☉

Radius (Solar)

1.20 R☉

Luminosity

0.21 log L☉

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

140.3391°, 14.3679°

Discovery Method

Transit

Discovery Year

2020

Data Sources

Source ID: HD 80653 b

System Context

HD 80653 b orbits HD 80653 and was reported in 2020 and was detected with the Transit method.

Published measurements list a radius of 1.62 Earth radii, a mass of 5.61 Earth masses, an orbital period of 0.72 days, and an equilibrium temperature near 2,438 K.

Catalog data places the system at about 109.9 parsecs from Earth, a host star classified as G0 V, and 2 known planets in the system.

Host star

Explore the stellar record for this system to compare temperature, spectral type, and known planets.

Open HD 80653

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