Exoplanet

TOI-172 b

Orbiting TOI-172

Overview

TOI-172 b is an exoplanet orbiting the star TOI-172, discovered in 2019 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

10.82

Earth radii

015 R⊕

Mass

1722.64

Earth masses

0500 M⊕

Orbital Period

9.5

days

0.1d10,000d

Distance

342.8

parsecs

Nearby10,000 pc

Equilibrium Temp

1198

K

150 K3,500 K

Radius (Earth radii)

10.82

Mass (Earth masses)

1722.64

Measured

Equilibrium Temperature

1198 K

Parameter source: Rodriguez et al. 2019

Orbital Period

9.477+0.001−0.001days

Semi-Major Axis

0.0914+0.0017−0.0017au

Planet Mass (Earth masses)

1722.64+69.92−63.57

Planet Mass (Jupiter masses)

5.4200+0.2200−0.2000

Eccentricity

0.3806+0.0093−0.0090

Epoch of Periastron

2458326.55+0.03−0.03days(BJD-TDB)

Argument of Periastron

57.1+1.7−1.7deg

Radial Velocity Semi-Amplitude

517.60+6.20−6.20m/s

Distance from Earth

342.8 pc (~1118 ly)

Spectral Type

Unknown

Temperature

5645 K

Mass (Solar)

1.13 M☉

Radius (Solar)

1.78 R☉

Luminosity

0.46 log L☉

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

316.6319°, -26.6929°

Discovery Method

Transit

Discovery Year

2019

Data Sources
NASA Exoplanet Archive

Source ID: TOI-172 b

System Context

TOI-172 b orbits TOI-172 and was reported in 2019 and was detected with the Transit method.

Published measurements list a radius of 10.82 Earth radii, a mass of 1,722.64 Earth masses, an orbital period of 9.48 days, and an equilibrium temperature near 1,198 K.

Catalog data places the system at about 342.8 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 TOI-172
TOI-172 b