Exoplanet

GPX-1 b

Orbiting GPX-1

Overview

GPX-1 b is an exoplanet orbiting the star GPX-1, discovered in 2021 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

16.48

Earth radii

015 R⊕

Mass

6261.22

Earth masses

0500 M⊕

Orbital Period

1.7

days

0.1d10,000d

Distance

655.0

parsecs

Nearby10,000 pc

Equilibrium Temp

2300

K

150 K3,500 K

Radius (Earth radii)

16.48

Mass (Earth masses)

6261.22

Measured

Equilibrium Temperature

2300 K

Parameter source: Benni et al. 2021

Orbital Period

1.745+0.000−0.000days

Semi-Major Axis

0.0338+0.0003−0.0003au

Planet Mass (Earth masses)

6261.22+508.53−508.53

Planet Mass (Jupiter masses)

19.7000+1.6000−1.6000

Eccentricity

0.0000

Radial Velocity Semi-Amplitude

2310.00+180.00−180.00m/s

Distance from Earth

655.0 pc (~2136 ly)

Spectral Type

F2

Temperature

7000 K

Mass (Solar)

1.68 M☉

Radius (Solar)

1.56 R☉

Luminosity

0.73 log L☉

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

38.3692°, 56.0257°

Discovery Method

Transit

Discovery Year

2021

Data Sources
NASA Exoplanet Archive

Source ID: GPX-1 b

System Context

GPX-1 b orbits GPX-1 and was reported in 2021 and was detected with the Transit method.

Published measurements list a radius of 16.48 Earth radii, a mass of 6,261.22 Earth masses, an orbital period of 1.74 days, and an equilibrium temperature near 2,300 K.

Catalog data places the system at about 655 parsecs from Earth, a host star classified as F2, 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 GPX-1